2019-05-19 20:07:45 +08:00
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# SPDX-License-Identifier: GPL-2.0-only
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2005-04-17 06:20:36 +08:00
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#
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# Multimedia device configuration
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#
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2017-05-28 16:48:37 +08:00
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config CEC_CORE
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tristate
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2017-05-28 16:58:04 +08:00
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config CEC_NOTIFIER
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2017-05-28 16:48:37 +08:00
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bool
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2017-07-11 14:30:42 +08:00
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config CEC_PIN
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bool
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2017-07-03 03:37:58 +08:00
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source "drivers/media/rc/Kconfig"
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2009-05-19 09:00:34 +08:00
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menuconfig MEDIA_SUPPORT
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tristate "Multimedia support"
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2007-05-10 21:45:57 +08:00
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depends on HAS_IOMEM
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2009-05-19 09:00:34 +08:00
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help
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2020-03-24 17:15:43 +08:00
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If you want to use media devices, including Webcams, Video grabber
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devices and/or TV devices, V4L2 codecs, etc, enable this option
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and other options below.
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2012-05-28 19:17:47 +08:00
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Additional info and docs are available on the web at
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2015-12-04 20:38:59 +08:00
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<https://linuxtv.org>
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2009-05-19 09:00:34 +08:00
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if MEDIA_SUPPORT
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2005-04-17 06:20:36 +08:00
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2008-04-30 08:38:44 +08:00
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comment "Multimedia core support"
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2012-05-28 19:17:47 +08:00
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#
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# Multimedia support - automatically enable V4L2 and DVB core
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#
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config MEDIA_CAMERA_SUPPORT
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bool "Cameras/video grabbers support"
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2019-03-20 18:39:44 +08:00
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help
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2012-05-28 19:17:47 +08:00
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Enable support for webcams and video grabbers.
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Say Y when you have a webcam or a video capture grabber board.
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config MEDIA_ANALOG_TV_SUPPORT
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bool "Analog TV support"
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2019-03-20 18:39:44 +08:00
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help
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2012-05-28 19:17:47 +08:00
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Enable analog TV support.
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media: Kconfig: better support hybrid TV devices
Right now, if one has an hybrid TV card, it has to select
both analog and digital TV support, as otherwise the needed
core support won't be selected.
Change the logic to auto-select the core support for those
drivers, as this is a way more intuitive.
It should be noticed that, as now both DVB_CORE and VIDEO_DEV
defaults depends on selecting a hybrid cards, we had to remove
the explicit dependencies there, in order to avoid circular
dependencies.
That requires some tricks:
1) the prompt should not be not visible when an hybrid card
is selected, as the user shold not change it.
2) When a media hybrid device is selected, the modular
option for DVB_CORE and VIDEO_DEV will follow the
MEDIA_SUPPORT dependency, as we can't have a core
built with "y" with a driver built as module.
Note: while here, moved two pure V4L2 PCI drivers out of the
"hybrid" part of config and consider pvrusb2 as an hybrid
device.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-25 15:36:36 +08:00
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Say Y when you have a board with analog TV support.
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2012-05-28 19:17:47 +08:00
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config MEDIA_DIGITAL_TV_SUPPORT
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bool "Digital TV support"
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2019-03-20 18:39:44 +08:00
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help
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2012-05-28 19:17:47 +08:00
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Enable digital TV support.
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media: Kconfig: better support hybrid TV devices
Right now, if one has an hybrid TV card, it has to select
both analog and digital TV support, as otherwise the needed
core support won't be selected.
Change the logic to auto-select the core support for those
drivers, as this is a way more intuitive.
It should be noticed that, as now both DVB_CORE and VIDEO_DEV
defaults depends on selecting a hybrid cards, we had to remove
the explicit dependencies there, in order to avoid circular
dependencies.
That requires some tricks:
1) the prompt should not be not visible when an hybrid card
is selected, as the user shold not change it.
2) When a media hybrid device is selected, the modular
option for DVB_CORE and VIDEO_DEV will follow the
MEDIA_SUPPORT dependency, as we can't have a core
built with "y" with a driver built as module.
Note: while here, moved two pure V4L2 PCI drivers out of the
"hybrid" part of config and consider pvrusb2 as an hybrid
device.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-25 15:36:36 +08:00
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Say Y when you have a board with digital TV support.
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2012-05-28 19:17:47 +08:00
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config MEDIA_RADIO_SUPPORT
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bool "AM/FM radio receivers/transmitters support"
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2019-03-20 18:39:44 +08:00
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help
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2012-05-28 19:17:47 +08:00
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Enable AM/FM radio support.
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Additional info and docs are available on the web at
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2015-12-04 20:38:59 +08:00
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<https://linuxtv.org>
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2012-05-28 19:17:47 +08:00
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Say Y when you have a board with radio support.
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2014-07-13 08:43:12 +08:00
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config MEDIA_SDR_SUPPORT
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bool "Software defined radio support"
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2019-03-20 18:39:44 +08:00
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help
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2014-07-13 08:43:12 +08:00
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Enable software defined radio support.
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Say Y when you have a software defined radio device.
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2016-11-02 18:25:28 +08:00
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config MEDIA_CEC_SUPPORT
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2018-05-03 07:19:30 +08:00
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bool "HDMI CEC support"
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2019-03-20 18:39:44 +08:00
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help
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2018-05-03 07:19:30 +08:00
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Enable support for HDMI CEC (Consumer Electronics Control),
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which is an optional HDMI feature.
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2016-11-02 18:25:28 +08:00
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2018-05-03 07:19:30 +08:00
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Say Y when you have an HDMI receiver, transmitter or a USB CEC
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adapter that supports HDMI CEC.
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2016-06-17 20:13:08 +08:00
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2020-03-24 17:27:15 +08:00
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config MEDIA_PLATFORM_SUPPORT
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bool "Platform-specific devices support"
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help
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Enable support for complex cameras, codecs, and other hardware
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that are integrated at the CPU, GPU or on Image Signalling Processor
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and don't use PCI, USB or Firewire buses.
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This is found on Embedded hardware (SoC), on V4L2 codecs and
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on some GPU and newer CPU chipsets.
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Say Y when you want to be able so see such devices.
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media: split test drivers from platform directory
When the first test device was added (vivi.c), there were just
one file. I was too lazy on that time to create a separate
directory just for it, so I kept it together with platform.
Now, we have vivid, vicodec, vim2m and vimc. Also, a new
virtual driver has been prepared to support DVB API.
So, it is time to solve this mess, by placing test stuff
on a separate directory.
It should be noticed that we also have some skeleton drivers
(for V4L and for DVB). For now, we'll keep them separate,
as they're not really test drivers, but instead, just
examples. The DVB frontend ones will likely be part of a new DVB
test driver. By that time, it should make sense to move them
here as well.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-24 17:39:43 +08:00
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config MEDIA_TEST_SUPPORT
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bool "Test drivers support"
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help
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Those drivers should not be used on production Kernels, but
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can be useful on debug ones. It enables several dummy drivers
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that simulate a real hardware. Very useful to test userspace
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applications and to validate if the subsystem core is doesn't
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have regressions.
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Say Y if you want to use some virtual test driver.
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In case of doubts, say N.
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2017-04-17 18:44:35 +08:00
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source "drivers/media/cec/Kconfig"
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2016-11-14 21:55:20 +08:00
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2019-05-02 21:42:31 +08:00
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source "drivers/media/mc/Kconfig"
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2018-12-06 01:23:54 +08:00
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2008-04-30 08:38:44 +08:00
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#
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2012-05-28 19:17:47 +08:00
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# Video4Linux support
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# Only enables if one of the V4L2 types (ATV, webcam, radio) is selected
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2008-04-30 08:38:44 +08:00
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#
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media: Kconfig: better support hybrid TV devices
Right now, if one has an hybrid TV card, it has to select
both analog and digital TV support, as otherwise the needed
core support won't be selected.
Change the logic to auto-select the core support for those
drivers, as this is a way more intuitive.
It should be noticed that, as now both DVB_CORE and VIDEO_DEV
defaults depends on selecting a hybrid cards, we had to remove
the explicit dependencies there, in order to avoid circular
dependencies.
That requires some tricks:
1) the prompt should not be not visible when an hybrid card
is selected, as the user shold not change it.
2) When a media hybrid device is selected, the modular
option for DVB_CORE and VIDEO_DEV will follow the
MEDIA_SUPPORT dependency, as we can't have a core
built with "y" with a driver built as module.
Note: while here, moved two pure V4L2 PCI drivers out of the
"hybrid" part of config and consider pvrusb2 as an hybrid
device.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-25 15:36:36 +08:00
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comment "Video4Linux core enabled to support hybrid TV devices"
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depends on MEDIA_HYBRID_USB || MEDIA_HYBRID_PCI
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2005-04-17 06:20:36 +08:00
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config VIDEO_DEV
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2012-05-28 19:17:47 +08:00
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tristate
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media: Kconfig: better support hybrid TV devices
Right now, if one has an hybrid TV card, it has to select
both analog and digital TV support, as otherwise the needed
core support won't be selected.
Change the logic to auto-select the core support for those
drivers, as this is a way more intuitive.
It should be noticed that, as now both DVB_CORE and VIDEO_DEV
defaults depends on selecting a hybrid cards, we had to remove
the explicit dependencies there, in order to avoid circular
dependencies.
That requires some tricks:
1) the prompt should not be not visible when an hybrid card
is selected, as the user shold not change it.
2) When a media hybrid device is selected, the modular
option for DVB_CORE and VIDEO_DEV will follow the
MEDIA_SUPPORT dependency, as we can't have a core
built with "y" with a driver built as module.
Note: while here, moved two pure V4L2 PCI drivers out of the
"hybrid" part of config and consider pvrusb2 as an hybrid
device.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-25 15:36:36 +08:00
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prompt "Video4Linux core" if !(MEDIA_HYBRID_USB || MEDIA_HYBRID_PCI)
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2020-03-26 22:47:25 +08:00
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default MEDIA_CAMERA_SUPPORT || MEDIA_ANALOG_TV_SUPPORT || MEDIA_RADIO_SUPPORT || MEDIA_SDR_SUPPORT || MEDIA_PLATFORM_SUPPORT || MEDIA_TEST_SUPPORT || MEDIA_HYBRID_USB || MEDIA_HYBRID_PCI
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2005-04-17 06:20:36 +08:00
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2010-05-21 17:04:24 +08:00
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config VIDEO_V4L2_SUBDEV_API
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2012-10-03 02:17:27 +08:00
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bool "V4L2 sub-device userspace API"
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depends on VIDEO_DEV && MEDIA_CONTROLLER
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2019-03-20 18:39:44 +08:00
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help
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2010-05-21 17:04:24 +08:00
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Enables the V4L2 sub-device pad-level userspace API used to configure
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video format, size and frame rate between hardware blocks.
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This API is mostly used by camera interfaces in embedded platforms.
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2012-08-15 03:07:25 +08:00
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source "drivers/media/v4l2-core/Kconfig"
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2008-04-30 08:38:44 +08:00
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#
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# DVB Core
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2012-05-28 19:17:47 +08:00
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# Only enables if one of DTV is selected
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2008-04-30 08:38:44 +08:00
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#
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2005-04-17 06:20:36 +08:00
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media: Kconfig: better support hybrid TV devices
Right now, if one has an hybrid TV card, it has to select
both analog and digital TV support, as otherwise the needed
core support won't be selected.
Change the logic to auto-select the core support for those
drivers, as this is a way more intuitive.
It should be noticed that, as now both DVB_CORE and VIDEO_DEV
defaults depends on selecting a hybrid cards, we had to remove
the explicit dependencies there, in order to avoid circular
dependencies.
That requires some tricks:
1) the prompt should not be not visible when an hybrid card
is selected, as the user shold not change it.
2) When a media hybrid device is selected, the modular
option for DVB_CORE and VIDEO_DEV will follow the
MEDIA_SUPPORT dependency, as we can't have a core
built with "y" with a driver built as module.
Note: while here, moved two pure V4L2 PCI drivers out of the
"hybrid" part of config and consider pvrusb2 as an hybrid
device.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-25 15:36:36 +08:00
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comment "Digital TV core enabled to support hybrid TV devices"
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depends on MEDIA_HYBRID_USB || MEDIA_HYBRID_PCI
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2008-04-30 08:38:44 +08:00
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config DVB_CORE
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2012-05-28 19:17:47 +08:00
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tristate
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media: Kconfig: better support hybrid TV devices
Right now, if one has an hybrid TV card, it has to select
both analog and digital TV support, as otherwise the needed
core support won't be selected.
Change the logic to auto-select the core support for those
drivers, as this is a way more intuitive.
It should be noticed that, as now both DVB_CORE and VIDEO_DEV
defaults depends on selecting a hybrid cards, we had to remove
the explicit dependencies there, in order to avoid circular
dependencies.
That requires some tricks:
1) the prompt should not be not visible when an hybrid card
is selected, as the user shold not change it.
2) When a media hybrid device is selected, the modular
option for DVB_CORE and VIDEO_DEV will follow the
MEDIA_SUPPORT dependency, as we can't have a core
built with "y" with a driver built as module.
Note: while here, moved two pure V4L2 PCI drivers out of the
"hybrid" part of config and consider pvrusb2 as an hybrid
device.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-25 15:36:36 +08:00
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prompt "Digital TV core" if !(MEDIA_HYBRID_USB || MEDIA_HYBRID_PCI)
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2012-05-28 19:17:47 +08:00
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depends on MEDIA_DIGITAL_TV_SUPPORT
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2018-03-07 22:51:17 +08:00
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depends on (I2C || I2C=n)
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2012-05-28 19:17:47 +08:00
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default y
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2008-04-30 08:38:44 +08:00
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select CRC32
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2007-08-28 08:59:35 +08:00
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2017-12-28 22:24:20 +08:00
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config DVB_MMAP
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bool "Enable DVB memory-mapped API (EXPERIMENTAL)"
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depends on DVB_CORE
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2018-01-04 18:31:31 +08:00
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depends on VIDEO_V4L2=y || VIDEO_V4L2=DVB_CORE
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select VIDEOBUF2_VMALLOC
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2017-12-28 22:24:20 +08:00
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help
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2018-01-17 11:16:12 +08:00
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This option enables DVB experimental memory-mapped API, which
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2017-12-28 22:24:20 +08:00
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reduces the number of context switches to read DVB buffers, as
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the buffers can use mmap() syscalls.
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Support for it is experimental. Use with care. If unsure,
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say N.
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2011-05-23 20:43:35 +08:00
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config DVB_NET
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bool "DVB Network Support"
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default (NET && INET)
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2011-06-10 18:43:26 +08:00
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depends on NET && INET && DVB_CORE
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2011-05-23 20:43:35 +08:00
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help
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2011-06-17 03:06:56 +08:00
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This option enables DVB Network Support which is a part of the DVB
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standard. It is used, for example, by automatic firmware updates used
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on Set-Top-Boxes. It can also be used to access the Internet via the
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DVB card, if the network provider supports it.
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2011-05-23 20:43:35 +08:00
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2011-06-17 03:06:56 +08:00
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You may want to disable the network support on embedded devices. If
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unsure say Y.
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2011-05-23 20:43:35 +08:00
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2012-08-15 03:07:25 +08:00
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source "drivers/media/dvb-core/Kconfig"
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2012-07-06 20:12:59 +08:00
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comment "Media drivers"
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2007-08-24 03:37:49 +08:00
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2012-06-15 03:35:56 +08:00
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source "drivers/media/usb/Kconfig"
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2012-08-20 21:02:05 +08:00
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source "drivers/media/pci/Kconfig"
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2020-03-24 17:27:15 +08:00
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source "drivers/media/radio/Kconfig"
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if MEDIA_PLATFORM_SUPPORT
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2012-08-20 21:02:05 +08:00
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source "drivers/media/platform/Kconfig"
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media: split test drivers from platform directory
When the first test device was added (vivi.c), there were just
one file. I was too lazy on that time to create a separate
directory just for it, so I kept it together with platform.
Now, we have vivid, vicodec, vim2m and vimc. Also, a new
virtual driver has been prepared to support DVB API.
So, it is time to solve this mess, by placing test stuff
on a separate directory.
It should be noticed that we also have some skeleton drivers
(for V4L and for DVB). For now, we'll keep them separate,
as they're not really test drivers, but instead, just
examples. The DVB frontend ones will likely be part of a new DVB
test driver. By that time, it should make sense to move them
here as well.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-24 17:39:43 +08:00
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source "drivers/media/test_drivers/Kconfig"
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2012-06-15 03:36:01 +08:00
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source "drivers/media/mmc/Kconfig"
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2020-03-24 17:27:15 +08:00
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endif
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2005-04-17 06:20:36 +08:00
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2012-06-15 03:35:55 +08:00
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source "drivers/media/firewire/Kconfig"
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2012-08-20 21:02:05 +08:00
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# Common driver options
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2012-06-15 03:35:58 +08:00
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source "drivers/media/common/Kconfig"
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2016-09-15 23:18:14 +08:00
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comment "Media ancillary drivers (tuners, sensors, i2c, spi, frontends)"
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2012-12-22 18:48:58 +08:00
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2012-08-20 21:02:05 +08:00
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#
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2016-09-15 23:18:14 +08:00
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# Ancillary drivers (tuners, i2c, spi, frontends)
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2012-08-20 21:02:05 +08:00
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#
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2012-08-21 01:48:02 +08:00
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config MEDIA_SUBDRV_AUTOSELECT
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2016-09-15 23:18:14 +08:00
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bool "Autoselect ancillary drivers (tuners, sensors, i2c, spi, frontends)"
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2014-07-13 08:43:12 +08:00
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depends on MEDIA_ANALOG_TV_SUPPORT || MEDIA_DIGITAL_TV_SUPPORT || MEDIA_CAMERA_SUPPORT || MEDIA_SDR_SUPPORT
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[media] subdev autoselect only works if I2C and I2C_MUX is selected
As reported by the kbuild test robot <fengguang.wu@intel.com>:
> warning: (VIDEO_EM28XX_DVB) selects DVB_M88DS3103 which has unmet direct dependencies (MEDIA_SUPPORT && DVB_CORE && I2C && I2C_MUX)
> drivers/built-in.o: In function `m88ds3103_release':
> >> m88ds3103.c:(.text+0x1ab1af): undefined reference to `i2c_del_mux_adapter'
> drivers/built-in.o: In function `m88ds3103_attach':
> >> (.text+0x1ab342): undefined reference to `i2c_add_mux_adapter'
There are 3 possible ways to fix it:
1) make em28xx dependent on I2C_MUX.
That sounds wrong, as the em28xx bridge doesn't have i2c muxes on it,
and just one frontend has.
Well, subdevs could eventually be converted to, instead of using dvb
i2c gate control, to use i2c mux support.
That makes sense, but it takes time and lots of effort. Not sure if
this will happen anytime soon.
2) MEDIA_SUBDRV_AUTOSELECT can be dependent of I2C and I2C_MUX.
That means that users will need to manually enable I2C_MUX on some
distributions. Not sure about others, but, on Fedora, this option is
disabled.
So, it can end by generating a number of complains from users
that their devices suddenly stopped working after a Kernel upgrade,
at least until all distros that ship Kernels with I2C_MUX enabled.
3) if MEDIA_SUBDRV_AUTOSELECT is selected, it will select I2C and I2C_MUX.
Of course, MEDIA_SUBDRV_AUTOSELECT will need to inherit all dependencies
that I2C and I2C_MUX have (only HAS_IOMEM).
The disadvantage is that, if new dependencies are added on I2C, they'll
also need to be added here.
As the hole idea of autoselect is to let the user not bother about whatever
frontend/tuner is used by a driver, IMHO, (3) is the better solution.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-21 15:42:11 +08:00
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depends on HAS_IOMEM
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select I2C
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select I2C_MUX
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2019-07-16 05:23:15 +08:00
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default y if !EMBEDDED
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2012-08-21 01:48:02 +08:00
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help
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2012-12-22 18:48:58 +08:00
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By default, a media driver auto-selects all possible ancillary
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devices such as tuners, sensors, video encoders/decoders and
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frontends, that are used by any of the supported devices.
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2012-08-21 01:48:02 +08:00
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This is generally the right thing to do, except when there
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2012-10-18 03:09:23 +08:00
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are strict constraints with regards to the kernel size,
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like on embedded systems.
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2012-08-21 01:48:02 +08:00
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2012-10-18 03:09:23 +08:00
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Use this option with care, as deselecting ancillary drivers which
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are, in fact, necessary will result in the lack of the needed
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functionality for your device (it may not tune or may not have
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2012-12-22 18:48:58 +08:00
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the needed demodulators).
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2012-08-21 01:48:02 +08:00
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If unsure say Y.
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2019-07-27 21:31:29 +08:00
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config MEDIA_HIDE_ANCILLARY_SUBDRV
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2019-11-21 11:19:37 +08:00
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bool
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depends on MEDIA_SUBDRV_AUTOSELECT && !COMPILE_TEST && !EXPERT
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default y
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2019-07-27 21:31:29 +08:00
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[media] Fix build when drivers are builtin and frontend modules
There are a large number of reports that the media build is
not compiling when some drivers are compiled as builtin, while
the needed frontends are compiled as module.
On the last one of such reports:
From: kbuild test robot <fengguang.wu@intel.com>
Subject: saa7134-dvb.c:undefined reference to `zl10039_attach'
The .config file has:
CONFIG_VIDEO_SAA7134=y
CONFIG_VIDEO_SAA7134_DVB=y
# CONFIG_MEDIA_ATTACH is not set
CONFIG_DVB_ZL10039=m
And it produces all those errors:
drivers/built-in.o: In function `set_type':
tuner-core.c:(.text+0x2f263e): undefined reference to `tea5767_attach'
tuner-core.c:(.text+0x2f273e): undefined reference to `tda9887_attach'
drivers/built-in.o: In function `tuner_probe':
tuner-core.c:(.text+0x2f2d20): undefined reference to `tea5767_autodetection'
drivers/built-in.o: In function `av7110_attach':
av7110.c:(.text+0x330bda): undefined reference to `ves1x93_attach'
av7110.c:(.text+0x330bf7): undefined reference to `stv0299_attach'
av7110.c:(.text+0x330c63): undefined reference to `tda8083_attach'
av7110.c:(.text+0x330d09): undefined reference to `ves1x93_attach'
av7110.c:(.text+0x330d33): undefined reference to `tda8083_attach'
av7110.c:(.text+0x330d5d): undefined reference to `stv0297_attach'
av7110.c:(.text+0x330dbe): undefined reference to `stv0299_attach'
drivers/built-in.o: In function `tuner_attach_dtt7520x':
ngene-cards.c:(.text+0x3381cb): undefined reference to `dvb_pll_attach'
drivers/built-in.o: In function `demod_attach_lg330x':
ngene-cards.c:(.text+0x33828a): undefined reference to `lgdt330x_attach'
drivers/built-in.o: In function `demod_attach_stv0900':
ngene-cards.c:(.text+0x3383d5): undefined reference to `stv090x_attach'
drivers/built-in.o: In function `cineS2_probe':
ngene-cards.c:(.text+0x338b7f): undefined reference to `drxk_attach'
drivers/built-in.o: In function `configure_tda827x_fe':
saa7134-dvb.c:(.text+0x346ae7): undefined reference to `tda10046_attach'
drivers/built-in.o: In function `dvb_init':
saa7134-dvb.c:(.text+0x347283): undefined reference to `mt352_attach'
saa7134-dvb.c:(.text+0x3472cd): undefined reference to `mt352_attach'
saa7134-dvb.c:(.text+0x34731c): undefined reference to `tda10046_attach'
saa7134-dvb.c:(.text+0x34733c): undefined reference to `tda10046_attach'
saa7134-dvb.c:(.text+0x34735c): undefined reference to `tda10046_attach'
saa7134-dvb.c:(.text+0x347378): undefined reference to `tda10046_attach'
saa7134-dvb.c:(.text+0x3473db): undefined reference to `tda10046_attach'
drivers/built-in.o:saa7134-dvb.c:(.text+0x347502): more undefined references to `tda10046_attach' follow
drivers/built-in.o: In function `dvb_init':
saa7134-dvb.c:(.text+0x347812): undefined reference to `mt352_attach'
saa7134-dvb.c:(.text+0x347951): undefined reference to `mt312_attach'
saa7134-dvb.c:(.text+0x3479a9): undefined reference to `mt312_attach'
>> saa7134-dvb.c:(.text+0x3479c1): undefined reference to `zl10039_attach'
This is happening because a builtin module can't use directly a symbol
found on a module. By enabling CONFIG_MEDIA_ATTACH, the configuration
becomes valid, as dvb_attach() macro loads the module if needed, making
the symbol available to the builtin module.
While this bug started to appear after the patches that use IS_DEFINED
macro (like changeset 7b34be71db533f3e0cf93d53cf62d036cdb5418a), this
bug is a way ancient than that.
The thing is that, before the IS_DEFINED() patches, the logic used to be:
&& defined(MODULE))
struct dvb_frontend *zl10039_attach(struct dvb_frontend *fe,
u8 i2c_addr,
struct i2c_adapter *i2c);
static inline struct dvb_frontend *zl10039_attach(struct dvb_frontend *fe,
u8 i2c_addr,
struct i2c_adapter *i2c)
{
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
return NULL;
}
The above code, with the .config file used, was evoluting to FALSE
(instead of TRUE as it should be, as CONFIG_DVB_ZL10039 is 'm'),
and were adding the static inline code at saa7134-dvb, instead
of the external call. So, while it weren't producing any compilation
error, the code weren't working either.
So, as the overhead for using CONFIG_MEDIA_ATTACH is minimal, just
enable it, if MODULES is defined.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-06-20 21:35:53 +08:00
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config MEDIA_ATTACH
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bool
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depends on MEDIA_ANALOG_TV_SUPPORT || MEDIA_DIGITAL_TV_SUPPORT || MEDIA_RADIO_SUPPORT
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depends on MODULES
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default MODULES
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2012-08-20 21:02:05 +08:00
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source "drivers/media/i2c/Kconfig"
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2016-09-15 23:18:14 +08:00
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source "drivers/media/spi/Kconfig"
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2012-08-21 01:48:02 +08:00
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source "drivers/media/tuners/Kconfig"
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2012-08-20 21:02:05 +08:00
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source "drivers/media/dvb-frontends/Kconfig"
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2009-05-19 09:00:34 +08:00
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endif # MEDIA_SUPPORT
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