>From firstname.lastname@example.org Fri Jun 23 18:08:29 2000
>I have modified the parport user space driver to do hardware ECP, DMA
>(Using 2.3.99pre8 and just copying the DMA write concept)
>It is not pretty (i'm a hardware guy) but I can post it if you want it.
>Even with the user space driver, the ECP/DMA concept is interrupt driven
>in terms of waiting for the terminal count (TC), but I am not sure how to
>extend the DMA size past the 64K bytes.
>I found the throughput to be quite fast (about 1 byte/ usec) but there is
>never guarenteed servicing... ie. the task can be swapped out of priority
>for about 50 usec. I needed guarenteed throughput so I am using EPP with
>user defined extra handshaking.
Would this eventually yield in a pg driver that would allow more
reliable use of CD-writers?
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