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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).
- 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 it's tiny changes explicitely at higher than default rate.
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