I just noticed that somewhere between 2.4.0test1-ac10 and 2.4.0test2
the scanner support was broken. ASFIK the scanner.c module was not
changed, so I suspect that something in the bulk transfer is not
working anymore.
In my case (EPSON Perfection610) it fails every time. I can not get
a communication with the scanner established.
Karl Heinz
On Sat, Jun 17, 2000 at 07:18:42PM -0700, John Gordon wrote:
> Hi all,
>
> Has anybody else noticed problems when using a USB scanner? I have an HP 5200C
> set up using the latest versions of SANE, the HP backend and XSANE. Most of the
> time it is OK, but every now and again a scan stops mid way and after a fairly
> long timeout (maybe 30 seconds - I'll try to time it next time ;-), XSANE tells
> me there was an I/O error. Restarting the scan works (no need to reset anything
> at the hardware level).
>
> dmesg is revealing the following:
>
> usb_control/bulk_msg: timeout
> scanner.c: read_scanner(0): NAK received
>
> Oh, I'm using 2.2.14 and the latest backport too so I may not be 100% up to
> date. Have there been any recent changes that could solve this? My HCD is UHCI
> and U'm using CONFIG_USB_UHCI_ALT compiled into the kernel.
>
> I don't have much time to explore at the moment, but if nobody else is seeing
> it maybe I can spend some time on it in the next few weeks (I have another OS
> to release this week ;-).
>
> TTFN,
>
> John...
>
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