On 10/22/2014 03:00 PM, Johan Hovold wrote: > On Wed, Oct 22, 2014 at 01:17:44PM +0200, Andreas Sundstrom wrote: >> Some newer switch models from HP has a usb2serial port in them. >> I just got to try one out and it sort of works with the generic >> usbserial driver. >> >> The problem I am seeing is that it always use 9600 bps, even if I >> specify 115200 or 19200. >> >> Is it possible to troubleshoot this in any way, I can test patches if >> needed. >> This is on a vanilla 3.17.1 kernel. >> >> Here are the details: >> modprobe usbserial vendor=0x3f0 product=0x13f >> [...] >> Looks like this one should be handled by the cdc-acm driver, but the >> device class (Misc) prevents it from being recognised. >> >> Can you try forcing it to bind through sysfs? >> >> echo 03f0 013f >/sys/bus/usb/drivers/cdc_acm/new_id >> >> Thanks, >> Johan I don't know how it works, but after I compiled the cdc_acm driver it is being loaded automatically when the USB port is plugged in. And it looks like it's working as it should. Thanks for the help /Andreas -- 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
