HID: Add HID Report Descriptor to sysfs

Add a new binary sysfs entry called report_descriptor which contains
the HID report descriptor.

Signed-off-by: Alan Ott <alan@signal11.us>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 10 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-driver-hid b/Documentation/ABI/testing/sysfs-driver-hid
new file mode 100644
index 000000000000..b6490e14fe83
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-hid
@@ -0,0 +1,10 @@
+What:           For USB devices : /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/report_descriptor
+                For BT devices  : /sys/class/bluetooth/hci<addr>/<hid-bus>:<vendor-id>:<product-id>.<num>/report_descriptor
+                Symlink         : /sys/class/hidraw/hidraw<num>/device/report_descriptor
+Date:           Jan 2011
+KernelVersion:  2.0.39
+Contact:        Alan Ott <alan@signal11.us>
+Description:    When read, this file returns the device's raw binary HID
+                report descriptor.
+                This file cannot be written.
+Users:          HIDAPI library (http://www.signal11.us/oss/hidapi)