Hello Oliver
On 06/25/2012 02:26 PM, Oliver Neukum wrote:
Am Montag, 25. Juni 2012, 13:00:13 schrieb Michael Bramer:
Hello
(please send reply in CC)
I have a problem, if my device send a tmc package with 52 (or 52+n*64)
Bytes. With the 12 bytes of the tmc header, the usb packages is 'full'
and the tmc drive reply with a ETIMEDOUT
[8336519.353913] usbtmc 4-1:1.0: Unable to read data, error -110
on the command line:
root@think:~# echo -ne "P1"> /dev/usbtmc0 ; cat< /dev/usbtmc0
cat: -: Connection timed out
With wireshark I can see the full usb packages with all it's data.
(the usb packet size is 64 Bytes)
If the device send data and the last usb package ist not full, all will
work without problems.
Kernel: Linux version 2.6.32-5-amd64
Have you a fix or a idea?
The host is waiting for a zero package. Whether it should do so
is another question.
The client should send a zero package, but I will check this.
Thanks for the very fast response.
Gruss
Michael Bramer
http://www.deb-support.de/
email: m.bramer@xxxxxxxxxxxxxx
Tel: +49 170 2253865
--
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
