44 lines
1.8 KiB
Plaintext
44 lines
1.8 KiB
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.
|
||
|
|
|
||
|
|
Note: when switching mode the current PicoLCD HID device gets
|
||
|
|
disconnected and reconnects after above delay (see attribute
|
||
|
|
operation_mode_delay for its value).
|
||
|
|
|
||
|
|
|
||
|
|
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/operation_mode_delay
|
||
|
|
Date: April 2010
|
||
|
|
Contact: Bruno Prémont <bonbons@linux-vserver.org>
|
||
|
|
Description: Delay PicoLCD waits before restarting in new mode when
|
||
|
|
operation_mode has changed.
|
||
|
|
|
||
|
|
Reading/Writing: It is expressed in ms and permitted range is
|
||
|
|
0..30000ms.
|
||
|
|
|
||
|
|
|
||
|
|
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/fb_update_rate
|
||
|
|
Date: March 2010
|
||
|
|
Contact: Bruno Prémont <bonbons@linux-vserver.org>
|
||
|
|
Description: Make it possible to adjust defio refresh rate.
|
||
|
|
|
||
|
|
Reading: returns list of available refresh rates (expressed in Hz),
|
||
|
|
the active refresh rate being enclosed in brackets ('[' and ']')
|
||
|
|
|
||
|
|
Writing: accepts new refresh rate expressed in integer Hz
|
||
|
|
within permitted rates.
|
||
|
|
|
||
|
|
Note: As device can barely do 2 complete refreshes a second
|
||
|
|
it only makes sense to adjust this value if only one or two
|
||
|
|
tiles get changed and it's not appropriate to expect the application
|
||
|
|
to flush its tiny changes explicitly at higher than default rate.
|
||
|
|
|