Tim Waugh wrote:
> On Fri, Feb 09, 2001 at 05:40:11PM -0800, Mohammed El Shobaki wrote:
> > Now to the problem: It seems that it does NOT support EPP???
> > Who is right, the vendor or parport_pc?
> > I must have EPP but I don't know how to deal with it in parport_pc (it's
> > beyond my competence to dig into that code =)
> The vendor is probably right. You might need to poke registers in the
> card to get it to do EPP or something. Gunther, do you know?
The autodetect code in parport_pc is often wrong and can even be
harmful to parallel ports. It relies partly on undocumented behaviour
and is poking aggressively at registers (e.g. ZIP Windows drivers
refuse all ports but standard ones to avoid these sorts of problems, it seems).
This is at 1st insmod (or after reboot):
Feb 9 22:24:42 m3 kernel: parport1: PC-style at 0x6300 (0x6400) [PCSPP,TRISTATE,COMPAT,ECP]
after rmmod I get this:
Feb 9 22:53:28 m3 kernel: PCI parallel port detected: 1409:7168, I/O at 0x6300(0x6400)
Feb 9 22:53:28 m3 kernel: parport: No ECR <-- custom debug code
Feb 9 22:53:28 m3 kernel: parport1: PC-style at 0x6300 [PCSPP,TRISTATE,EPP]
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This archive was generated by hypermail 2b29 : Fri Feb 09 2001 - 16:39:06 EST