Feico de Boer wrote:
> USB not sure if DMA is possibly but might be usefull to consider
USB does quite reasonable bus master DMA all the time
> The BayCom EPP adapter (http://www.baycom.org) reduces the number of
> interrupts by utilizing the 8-bits wide parallel poort and an external
> parallel to serial (the EPP adaptor) to drive 76k8 modems. This technique
> reduces the interrupts by at most the factor of eight.
> Next step is DMA. With DMA data is delivered into the computers RAM for
> immediate use. No interrupts (unless maybe a "packet ready" signal) and data
I intend to hack a ECP/ISADMA driver for the EPP modem once Tim Waugh's
Parport
stuff is in the kernel.
Tom
