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greybus: Documentation/sysfs-bus-greybus: document module sysfs files 

This documents the module slot sysfs files "epm", "power_control", and
"present".

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Reviewed-by: Alex Elder <elder@linaro.org>
This commit is contained in:
Greg Kroah-Hartman 2015-04-07 20:28:13 +02:00
parent 7baa184dbd
commit b0235b2263
1 changed files with 30 additions and 0 deletions
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30
drivers/staging/greybus/Documentation/sysfs-bus-greybus
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@ -21,6 +21,36 @@ Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
The version number of the firmware in the SVC device.
What: /sys/bus/greybus/device/endo-XXXX/../epm
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
The EPM (Electropermanent Magnet) control file for
the specific module slot the file is present in.
Writing 1 to it turns it on, writing 0 to it turns it
off. Reading the value returns if it is on or off.
What: /sys/bus/greybus/device/endo-XXXX/../power_control
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
The power control file for the specific module slot that
the file is present in. Writing 1 to it turns power on
to the module, writing 0 to it turns power off to the
module. Reading the value returns if it is on or off.
What: /sys/bus/greybus/device/endo-XXXX/../present
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
The "is a module present in the slot" file for the
specific module slot that the file is present in.
This is read-only, 1 means a module is present, 0 means
no module is present.
What: /sys/bus/greybus/device/.../product
Date: October 2015
KernelVersion: 4.XX