The other driver mentioned here:
http://mail.directfb.org/pipermail/directfb-users/2006-September/002189.html
is using spin_locks() during interrupt processing :
Shouldn't be an issue unless on a multi-processor machine, should it? Don't think there are any multi-processor VIA boards.
In both cases I do not understand the logic in
a. testing a bit
b. writing back value with tested bit set
... to clear the interrupt status flag (reading and writing can have very different functions when it's not conventional memory that you're addressing).
Mark
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