> In message <el2n34uyswh.fsf@zygorthian-space-raiders.MIT.EDU>, Mycroft wrote:
> 
> -> Sounds cards are a good example of where `bounce buffers' are exactly
> -> the wrong thing to do.  It means you can't ever mmap() the sound
> -> buffer.
> 
> 	At the risk of sounding dumb (it's happened plenty of times
> 	before 8-), what other options do you have with DMA-capable
> 	sounds cards on an ISA bus and > 16Meg of memory??

"allocate DMAable memory," "deallocate DMAable memory."

You also need this for things like allocating ccb's for ISA SCSI
controllers like the aha & bt (especially if you're dynamically
loading drivers for them), etc.


chris