Re: WARNING: ...usb-serial.c:412 serial_write_room

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Oct 12, 2009 at 09:56:29PM +0200, Richard Zidlicky wrote:
> Hello,
> 
> everything worked nicely untill I happened to hit this one - looked
> scary enough that I rebooted on next occassion.

What kernel version are you using?

Can you enable usb-serial debugging to see if you can reproduce this?

> Iirc it happened some like this: I was playing with the UMTS modem
> issuing AT commands in minicom and wanted to capture the output of
> "AT+CLAC". Could have looked at the manpage to see how to enable the
> protocol function but instead I had the interesting idea to try "tail
> -f /dev/ttyUSB*" to see if anything is comming from the other ports.
> 
> Btw is there any method figure out what the particular ports are good
> for? I found by trial and error that ttyUSB3 is usually the one which
> works to start a pppd connection but sometimes the ports are
> registered with different numbers and also have seen one disapper
> while it was open and in use only to be reregistered with another
> number.

Unfortunatly, it's a device-specific thing :(

thanks,

greg k-h
--
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

[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux