March 2, 2011
5:33 p.m.
On Tue, Mar 1, 2011 at 11:10 AM, Simon Leung <simonleung@gmx.com> wrote:
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?
You may need to eject the scsi cdrom with USB_ModeSwitch. In distros with normally is automatically done via a udev rule. -- John