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