Re: Question: how to copy to user space from a tasklet

[Stefan Richter]

Tom Brown wrote:
> [Sorry to have to ask this here - I can't find any driver-specific
> newsgroup or mailing lists - are there any??]

linux-newbie perhaps.

> I have a driver which needs to copy device data direct to user space
> from a tasklet.

One way would be to use mmap() to allocate the DMA buffer and insert it into
the user address space before DMA commences.  An additional poll/read/write
based protocol or so can be used for buffer management during DMA.
-- 
Stefan Richter
-=====-==-=- =-=- -====
http://arcgraph.de/sr/
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