Re: [hpoj-devel] new "ptal-mlcd" I/O driver checked into CVS

[<pa...@rc...>]

Alexander Zimmermann wrote:
> The current CVS code with ptal-mlcd compiles and works fine (printing
> and scanning) on my system:
> 
>   RedHat 7.0, kernel 2.2.16 SMP, gcc 2.95.2, glibc 2.2
>   G85 connected to parport 0 (in ECP mode)
> 
> Color scanning of one A4 page at 75 dpi lasts about 1 minute.
> (Is that a normal time?)
Hi, Alexander.  Thanks for the report.  Parallel-port I/O with ptal-mlcd is
slower in general than it was with the old kernel-mode drivers.  (I too was
disappointed when I discovered that.)  I will do some optimization eventually
to try to improve performace, but in any case at least it should be a lot
more robust with SMP than the old drivers.  In the meantime, if your system
supports USB then you can get much better performance that way, but you'll
need to upgrade drivers/usb/printer.c in the kernel.

David