Hi, On Wed, Aug 11, 2010 at 01:42:58PM -0400, Xuan Li wrote: > Dear Sir, > > I am an software Engineering of Link Communications and using chipset > kl5kusb105 on our product. I am making the driver of that chipset to > work under Linux 2.6.35, but with no success. Although the doc in > kl5kusb105.c said tested with Palm handset, and not guaranteed working > with other devices, my problem seen here is that, that driver > successfully mapped that USB-4 Serial port chipset to > /dev/ttyUSB0,/dev/ttyUSB1,/dev/ttyUSB2,/dev/ttyUSB3, still my GPS > device which is connected to /dev/ttyUSB0 can not send NMEA package > through. So I was wondering if you can help me with or give me some > clue. I send a datasheet of that USB-4 Seiral Port chipset as > attachment. Also the chipset's vendor ID is 0x05e9, product ID is > 0x0015. > > Thank you very much in advance for your time to read my email. There is a bug in 2.6.35 which may be what is causing problems for you. Can you try applying b58af4066d240b18b43f202e07b9ec7461d90b17 (USB: serial: fix stalled writes) from upstream and see if that helps? This fix will be in 2.6.35.2 to be released soon. If that does not help, could you provide a log from when running 2.6.35 (with the above patch applied) and debugging enabled (for both kl5usb105 and usb-serial). > Best Regards, > > Xuan Li Thanks, Johan -- 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
