On Fri, Aug 09, 2002 at 03:21:51PM +0200, stef wrote:
> I've noticed that my parallel port scanner (umax_pp SANE
> backend) has troubles with 2.4.19, but no problem at all with
> 2.4.18. Both kernels are built with the same .config.
Hm. I can't see any changes between 2.4.18 and 2.4.19 that would
affect only EPP hardware transfers (and not software-emulated EPP
transfers, which seem to be working fine).
> It seems that when doing EPP read (using ppdev) some data are
> losts, and some subsequent reads seem to give part of these datas.
Odd. How about when software-emulated EPP is used? (You can use
IEEE1284_MODE_EPPSWE instead of IEEE1284_MODE_EPP.)
> But the scanner is mostly working doing epp read and write
> trough ppdev. I've tried to throw parport code from 2.4.18 into
> 2.4.19, but it showed the same bug. I'll retry this to check I have
> done it right.
Okay. Let me know what you find.
Thanks,
Tim.
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