On Thu, Sep 07, 2000 at 02:10:54PM +0200, Bart De Win wrote:
> EPP/ECP. For the LCD display I simply have to put data on the data
> lines and then I have to set the Enable line on the LCD to high and
> later to low again (this acts as a strobe). This is all the
> functionality I'm using, so I think I don't need EPP/ECP.
Enable line? nStrobe?
0xff back sounds like you don't _have_ an ECR (at least, not in that
mode). Also, you probably want PS2 mode (top bits 001) rather than
SPP mode (top bits 000): it's the same, but the direction bit (0x20)
of CTR works in PS2 mode.
> anything. So I don't know if for example the ECR is always located at
> Base_Address + 0x402.
It usually is; the exception is PCI cards.
> And maybe another question : since I write directly to the address of the
> parallel port, do I actually need the parport_pc driver to be loaded ? If so,
> why ?
No, you don't.
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This archive was generated by hypermail 2b29 : Thu Sep 07 2000 - 09:00:00 EDT