[sane-devel] USB2 4 port hub and write_scanner(0): funky
Sun, 01 May 2005 11:20:38 +0200
Alexander Iain Kempshall <firstname.lastname@example.org> wrote:
> Using a power supply made no difference. Adding scanner to the blacklist does
Ok, too bad :/ When using USB hubs, this is the very first cause of
> seem to have made a difference. Rebooted the machine three or more times now
> and on each occasion the scanner works - eventually. I say eventually
> because in each new session the first time a scan is attempted it will fail
> with the following in dmesg -
> usbdevfs: USBDEVFS_CONTROL failed dev 5 rqt 128 rq 6 len 2 ret -32
Hmm, I can't remember which include file has the error defines, I'll
have a look again later.
> On the second and subsequent attempts the scanner works perfectly. What do the
> errors mean?
Julien BLACHE <http://www.jblache.org>
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