hi Greg: 2014-08-30 2:31 GMT+08:00 Greg KH <greg@xxxxxxxxx>: > On Fri, Aug 29, 2014 at 11:18:39AM +0800, vichy wrote: >> hi all: >> I have read the article below and try to do the same operation on my device. >> http://lwn.net/Articles/143397/ >> >> My environment: >> 1. my kernel is 3.16 >> 2. device descriptor is attached. >> 3. below are my operation logs: >> # echo -n "4-2:1.0" > /sys/bus/usb/drivers/uas/unbind >> # echo -n "4-2:1.0" > /sys/bus/usb/drivers/usb-storage/unbind >> bash: echo: write error: No such device > > You unbound your device from two different drivers? Of course the > second one doesn't work, it's not bound there :) sorry for my typo ^^ BTW, is bind/unbind a part of bus driver call backs, since I only find them in /sys/bus. If so, # pwd /sys # find ./ -name 'unbind' ./bus/cpu/drivers/processor/unbind ./bus/i2c/drivers/rc5t583/unbind ./bus/i2c/drivers/smsc/unbind ./bus/i2c/drivers/88PM860x/unbind ./bus/i2c/drivers/dummy/unbind ...... appreciate all your kind help, -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
