Commit Graph

5 Commits

Author SHA1 Message Date
Alan Ott b4dbde9da8 HID: Add Support for Setting and Getting Feature Reports from hidraw
Per the HID Specification, Feature reports must be sent and received on
the Configuration endpoint (EP 0) through the Set_Report/Get_Report
interfaces.  This patch adds two ioctls to hidraw to set and get feature
reports to and from the device.  Modifications were made to hidraw and
usbhid.

New hidraw ioctls:
  HIDIOCSFEATURE - Perform a Set_Report transfer of a Feature report.
  HIDIOCGFEATURE - Perform a Get_Report transfer of a Feature report.

Signed-off-by: Alan Ott <alan@signal11.us>
Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-02-11 15:05:49 +01:00
Jiri Kosina 9188e79ec3 HID: add phys and name ioctls to hidraw
The hiddev interface provides ioctl() calls which can be used
to obtain phys and raw name of the underlying device.

Add the corresponding support also into hidraw.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-01-04 01:00:51 +01:00
Mike Frysinger 0dd9154442 HID: export headers properly
I have people whining about using these headers in userspace, and they have
__KERNEL__ markings which implies they're supposed to be exported.  I also
added the required linux/types.h include to hidraw.h since it uses the __u##
kernel types.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: Jiri Kosina <jikos@jikos.cz>
Cc: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-04-22 11:34:59 +02:00
Jiri Kosina 57d292bd7e HID: fix HIDIOCGRDESC memory access in hidraw
Fix bogus copying of data into userspace when HIDIOCGRDESC is issued.
HID-transport layer makes sure that dev->hid->rdesc is not larger than
HID_MAX_DESCRIPTOR_SIZE.

Noticed-by: Al Viro <viro@ftp.linux.org.uk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-15 08:12:00 -07:00
Jiri Kosina 86166b7bcd HID: add hidraw interface
hidraw is an interface that is going to obsolete hiddev one
day.

Many userland applications are using libusb instead of using
kernel-provided hiddev interface. This is caused by various
reasons - the HID parser in kernel doesn't handle all the
HID hardware on the planet properly, some devices might require
its own specific quirks/drivers, etc.

hiddev interface tries to do its best to parse all the received
reports properly, and presents only parsed usages into userspace.
This is however often not enough, and that's the reason why
many userland applications just don't use hiddev at all, and
rather use libusb to read raw USB events and process them on
their own.

Another drawback of hiddev is that it is USB-specific.

hidraw interface provides userspace readers with really raw HID
reports, no matter what the low-level transport layer is (USB/BT),
and gives the userland applications all the freedom to process
the HID reports in a way they wish to.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2007-10-14 14:47:26 +02:00