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

Re: AW: AW: AW: AW: AW: AW: problem with ioctl call

Schachner Thomas wrote:
> Hi!
> With usb-host.c version it works correct.
> but i always get an usb_control/bulk_msg : timeout if the usb
> bus is accessed.
> Function is correct of the server application but why are these timeouts?

Hard to say, since I don't know what those control transfers are 
supposed to do.  Quite a lot of control traffic has been sent by the 
time the timeouts appear, and everything seems fine up until that point. 
  (To actually find out what's happening, I would need to have access to 
the device so I could connect my USB analyzer to it.)  It seems strange 
that the device should suddenly stop responding to control out 
transfers, since it's reasonable to believe that the communication with 
the device is the same as on your i386 host.  Do you get any kind of 
error messages in /var/log/messages on your host?

I got a bit worried when checking the Linux USB working devices list for 
the Dallas DS2490 (http://www.qbik.ch/usb/devices/showdev.php?id=1344), 
since it indicates that the driver isn't working.  I also checked the 
SourceForge page (http://sourceforge.net/projects/onewirepd/) and it 
isn't clear to me what the status of the driver is.

Orjan Friberg
Axis Communications