On Sat, Jul 11, 2009 at 08:20:13PM +0200, Josua Dietze wrote: > Greg KH schrieb: > > >> is there a reason dynamic device IDs are switched off by default in > >> the "option" driver? > >> > >> ------- > >> .no_dynamic_id = 1, > >> ------- > >> > >> This is one of the drivers which dynamic IDs would be especially > >> useful for. > > > > USB to serial drivers have their own dynamic id infrastructure, and it > > does not work with the usb core's dynamic id one. That is why all > > usb-serial drivers should have no_dynamic_id set. > > > > So the driver does support dynamic ids, have you tried it from > > userspace? > > In fact, I have. I tested my 3G modem, taking it out of the ID table > and loading the dynamic-enabled "option" module manually. > > > plugging in: > ------------ > usb 4-1: usb_probe_device > usb 4-1: configuration #1 chosen from 1 choice > usb 4-1: adding 4-1:1.0 (config #1, interface 0) > usb 4-1:1.0: uevent > usb 4-1: adding 4-1:1.1 (config #1, interface 1) > usb 4-1:1.1: uevent > usb 4-1: adding 4-1:1.2 (config #1, interface 2) > usb 4-1:1.2: uevent > > > modprobe option > --------------- > usbcore: registered new interface driver usbserial > USB Serial support registered for generic > usbserial_generic 4-1:1.0: usb_probe_interface > usbserial_generic 4-1:1.0: usb_probe_interface - got id > usbserial_generic 4-1:1.1: usb_probe_interface > usbserial_generic 4-1:1.1: usb_probe_interface - got id > usbserial_generic 4-1:1.2: usb_probe_interface > usbserial_generic 4-1:1.2: usb_probe_interface - got id > usbcore: registered new interface driver usbserial_generic > usbserial: USB Serial Driver core > USB Serial support registered for GSM modem (1-port) > usbcore: registered new interface driver option > option: v0.7.2:USB Driver for GSM modems > > > echo "0af0 6600" >/sys/bus/usb/drivers/option/new_id Try: echo "0af0 6600" > /sys/bus/usb-seria/drivers/option/new_id instead. > But no /dev files are created. An udev thing or just failure? Try the line above. > My cause: > Everybody keeps stressing to use "option", not generic serial for > broadband wireless; but until a new device is officially supported > by the next kernel release, it would be nice to be able to avoid > telling users to work with "usb-serial" in the meantime. Usually, > they tend to stick with it ... generic serial shouldn't be used for anything :) Have you submitted a patch for this device id to be added to the next kernel release? 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
