1*4882a593SmuzhiyunWhat: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/operation_mode 2*4882a593SmuzhiyunDate: March 2010 3*4882a593SmuzhiyunContact: Bruno Prémont <bonbons@linux-vserver.org> 4*4882a593SmuzhiyunDescription: Make it possible to switch the PicoLCD device between LCD 5*4882a593Smuzhiyun (firmware) and bootloader (flasher) operation modes. 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun Reading: returns list of available modes, the active mode being 8*4882a593Smuzhiyun enclosed in brackets ('[' and ']') 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun Writing: causes operation mode switch. Permitted values are 11*4882a593Smuzhiyun the non-active mode names listed when read. 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun Note: when switching mode the current PicoLCD HID device gets 14*4882a593Smuzhiyun disconnected and reconnects after above delay (see attribute 15*4882a593Smuzhiyun operation_mode_delay for its value). 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun 18*4882a593SmuzhiyunWhat: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/operation_mode_delay 19*4882a593SmuzhiyunDate: April 2010 20*4882a593SmuzhiyunContact: Bruno Prémont <bonbons@linux-vserver.org> 21*4882a593SmuzhiyunDescription: Delay PicoLCD waits before restarting in new mode when 22*4882a593Smuzhiyun operation_mode has changed. 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun Reading/Writing: It is expressed in ms and permitted range is 25*4882a593Smuzhiyun 0..30000ms. 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun 28*4882a593SmuzhiyunWhat: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/fb_update_rate 29*4882a593SmuzhiyunDate: March 2010 30*4882a593SmuzhiyunContact: Bruno Prémont <bonbons@linux-vserver.org> 31*4882a593SmuzhiyunDescription: Make it possible to adjust defio refresh rate. 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun Reading: returns list of available refresh rates (expressed in Hz), 34*4882a593Smuzhiyun the active refresh rate being enclosed in brackets ('[' and ']') 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun Writing: accepts new refresh rate expressed in integer Hz 37*4882a593Smuzhiyun within permitted rates. 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun Note: As device can barely do 2 complete refreshes a second 40*4882a593Smuzhiyun it only makes sense to adjust this value if only one or two 41*4882a593Smuzhiyun tiles get changed and it's not appropriate to expect the application 42*4882a593Smuzhiyun to flush its tiny changes explicitly at higher than default rate. 43*4882a593Smuzhiyun 44