Re: [PARPORT] Parallel Port FIFO mode

Nicolas Souchu (
Tue, 22 Dec 1998 01:13:53 +0000

On Mon, Dec 21, 1998 at 09:10:12AM +0000, Tim Waugh wrote:
>On Mon, 21 Dec 1998, Keiichi Sakai wrote:
>> I have modified the driver to use the FIFO for 2.0.29 kernel and now
>> I am using the parallel port FIFO mode lp driver in 2.0.35 kernel.
>> The driver works fine for me.
>> I have no time to port it to 2.1.13x kernel.
>I've modified my code to take advantage of the FIFO being completely
>empty, as yours does. (You can replace the asm()s with things like
>Incidentally, has _anyone_ seen a chipset with a FIFO size other than 16?

ReadThreshold is more variable. Just an issue for interrupt oriented
transfers without DMA enabled though. Does your last source take DMA in


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