RE: [PARPORT] Printer works in 2.0.36 but no in 2.2.x

Juha Sahakangas (
Fri, 30 Apr 1999 16:38:45 +0300 (EEST)

On Fri, 30 Apr 1999, Tim Waugh wrote:

> Have you tried with and without interrupts? 'insmod parport_pc io=0xXXX'
> for no interrupts (i.e. polling operation) and 'insmod parport_pc io=0xXXX
> irq=Y' for interrupt-driven operation.

Sure.. no affect.

> At the moment I'm not sure if it's something special that 2.0.36 is doing or
> something stupid that 2.2.6 is doing. It would be useful to find out if
> 2.2.x-tmw can print to that printer: the normal printing codepath is quite
> similar to 2.2, but it can also use ECP FIFOs. Can the chipset be put in
> ECP mode in the BIOS, do you know?

Yes, it can be put in the ECP mode.

> I would appreciate it if you can find time to apply patch-2.2.6-tmw7
> ( and let me know if you can get it to print. Remember to
> try with and without interrupts. If you compile parport_pc as a module,
> you'll also be able to recompile with and without FIFO support.

Well, let's try that then.

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This archive was generated by hypermail 2.0b3 on Fri 30 Apr 1999 - 09:34:12 EDT