path: root/Documentation/ABI/testing
diff options
authorBruno Prémont <bonbons@linux-vserver.org>2010-03-30 22:33:50 +0200
committerJiri Kosina <jkosina@suse.cz>2010-03-31 11:20:59 +0200
commit236db47c2b3b69464d50c695ab2ddd516cf64520 (patch)
tree599125d28f2f0a23be2da9dc59d783fc404b65b0 /Documentation/ABI/testing
parent39710479303fd3affb3e204e9a7a75cc676977b5 (diff)
HID: new driver for PicoLCD device
Add basic driver for PicoLCD graphics device. Initially support keypad with input device and provide support for debugging communication via events file from debugfs. Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'Documentation/ABI/testing')
1 files changed, 17 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-picolcd b/Documentation/ABI/testing/sysfs-driver-hid-picolcd
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index 00000000000..6fb4f21469f
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+What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/operation_mode
+Date: March 2010
+Contact: Bruno Prémont <bonbons@linux-vserver.org>
+Description: Make it possible to switch the PicoLCD device between LCD
+ (firmware) and bootloader (flasher) operation modes.
+ Reading: returns list of available modes, the active mode being
+ enclosed in brackets ('[' and ']')
+ Writing: causes operation mode switch. Permitted values are
+ the non-active mode names listed when read, optionally followed
+ by a delay value expressed in ms.
+ Note: when switching mode the current PicoLCD HID device gets
+ disconnected and reconnects after above delay (default value
+ is 5 seconds though this default should not be relied on).