g_serial hanging

[Grahame Jordan <gbj@xxxxxxxxxxxxxxx>]

Hi,

I am using the USB client interface on a PXA255 and setting up as USB_Serial

modprobe g_serial use_acm=1

inittab:
null::respawn:/sbin/getty -L ttygserial 115200 vt100

I get an /dev/ttyACM0 come up on my Linux box.
cu -s 115200 -l /dev/ttyACM0

I can login and it appears to work.
However when I run certain commands the terminal no longer echos and 
appears to hang. Commands still run, eg reboot reboots the device. This 
is repeatable. "ls -lar /" hangs it after the first page.
This also happens from a Windows machine.

The terminal settings are:
# stty -F /dev/ttygserial
speed 115200 baud;
eol = ^J;
-brkint ixoff -imaxbel
-iexten -echoctl


Thanks

Grahame Jordan

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