[sane-devel] Re: HP SJ5300C

[Henning Meier-Geinitz]

Hi,

On Mon, Apr 07, 2003 at 08:07:36PM +0400, Sergey Vlasov wrote:
> At least with Mustek BearPaw 2400TA, there is a difference between using
> scanner.c or libusb: libusb is slower.  Usually this does not matter -
> but at some resolutions scanning becomes unusably slow with libusb (lots
> of backtracking, even on Athlon XP 2000+), while the same settings with
> /dev/usb/scanner0 gives at most 2-3 backtrackings.  This is because the
> GT68xx chips have a very small buffer - only 16KB.

Enabling the fork code may also help (gt68xx.c, near the top).

Bye,
  Henning