On Thu, Mar 28, 2013 at 01:11:04AM +0800, Lan Tianyu wrote: > Usb port isn't assigned to any bus_type. This seems not good from > Greg's comments. > http://marc.info/?l=linux-usb&m=136200364929942&w=2 > > This patch is to register usb port to usb_bus_type. The usb port's > original name is "portX". This will cause name confilct after adding > usb port to usb_bus_type since the usb ports with same port num under > different hub have the same name. So change the usb port's name format > to "port + (hub dev name) + '.' + (port num)" for non-root hub and > "port + (usb bus num) + '-' + (port num)" for root hub. > > ls /sys/bus/usb/devices > 1-0:1.0 2-0:1.0 port1-1 port1-1.3 port2-1.2 port2-2 port4-3 > 1-1 2-1 port1-1.1 port1-1.4 port2-1.3 port3-1 port4-4 > 1-1.1 2-1:1.0 port1-1.2 port1-1.5 port2-1.4 port3-2 usb1 > 1-1:1.0 3-0:1.0 port1-1.2.1 port1-1.6 port2-1.5 port3-3 usb2 > 1-1.1:1.0 3-1 port1-1.2.2 port1-2 port2-1.6 port3-4 usb3 > 1-1.2 3-1:1.0 port1-1.2.3 port2-1 port2-1.7 port4-1 usb4 > 1-1.2:1.0 4-0:1.0 port1-1.2.4 port2-1.1 port2-1.8 port4-2 What does it look like if you reverse the naming scheme (hub dev name + "port")? Doesn't that show the devices in a bit more logical way? 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
