From mboxrd@z Thu Jan 1 00:00:00 1970 From: simonleung@gmx.com (Simon Leung) Date: Tue, 01 Mar 2011 16:10:43 +0000 Subject: likely kernel/driver problem with 3G USB stick Message-ID: <4D6D1A83.7000907@gmx.com> To: kernelnewbies@lists.kernelnewbies.org List-Id: kernelnewbies.lists.kernelnewbies.org Hi all, I'm having a problem with my 3G USB stick (Huawei E220) . The kernel I'm using is version 2.6.21 customized for an ARM board. When I insert the USB stick into the system, normally 3 device show up: /dev/ttyUSB{0,1,2}. The problem I' having is that some time, only the first one shows up and I cannot connect to it. When this happens, normally a reboot will fix it. As I said, this sounds like a kernel/driver issue to me. Could somebody give me some pointers as how to prove/fix it? Thanks,