On Sat, Aug 23, 2014 at 11:37:28PM +0800, peter li wrote: > 1.In which case will i get EPROTO during commuicate with usb device, i > called usb_bulk_msg in my usb_drv What driver is this? > 2.while i continue plug and pull the usb device a few times because of > EPROTO and some times (errno=110) error , the usb device is not probed, > nothing print in dmesg. Sounds like a broken device, is the firmware crashed in it? Does the device see the USB connection? thanks, greg k-h -- 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
