mirror of
https://github.com/torvalds/linux.git
synced 2024-12-23 03:11:46 +00:00
236db47c2b
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>
18 lines
786 B
Plaintext
18 lines
786 B
Plaintext
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).
|
|
|