(cc linux-usb) On Mon, 19 Jan 2009 15:20:13 -0500 "Thomas Tuttle" <linux-kernel@xxxxxxxxxxx> wrote: > Hi. > > I've got a Lenovo X200 with an Ericsson F3507g Mobile Broadband Module > (a 3G cellular data card with built-in GPS), which uses the cdc_acm > driver. I've experienced a couple of problems with it. First, it > tends to hang the system after I've been using it for a while. This > occurs whenever it's sending a lot of data to/from the computer, > whether it's a PPP connection or a GPS data stream. I'm not sure how > to debug this; the Caps Lock light isn't flashing, so I'm not sure if > it's a panic or just a hang. Second, if I read one of the TTYs using > "cat", I get a ton of blank lines. To make any sense of the data > stream, I have to do cat /dev/ttyACM0 | grep -v "^$". > > If anyone could help me debug this, I'd be greatly appreciative. > > Thanks, > > Thomas Tuttle -- 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
