On Thu, Dec 23, 2010 at 10:21:40AM +0100, Filip Aben wrote:
> If you're using a 2.6.36ish version, it's most likely the following in
> hso_serial_open:
>
> /* sanity check */
> if (serial == NULL || serial->magic != HSO_SERIAL_MAGIC) {
> WARN_ON(1);
> tty->driver_data = NULL;
> D1("Failed to open port");
> return -ENODEV;
> }
>
> I suppose it's possible that the device is physically gone but the tty
> hasn't been closed or torn down yet. Does it leave your system in an
> unstable state ? Because it shouldn't.
It was working fine for a few hours. Then I had to reboot. If you
say that shouldn't break anything that's OK for me.
> Also, are you sure you're opening the correct port when the device
> reappears and not some stale tty ?
Yes, there is an udev rule that queries temporary device and
adds a symlink basing on modem's SN. Each app uses only those
symlinks.
>
> Thanks,
>
> Filip-
>
>
Many thanks to you for your help, and Merry Christmas to everyone.
Piotr
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