On Mon, May 25, 2009 at 3:20 AM, Michael Trimarchi <[email protected]> wrote: > Hi, > > I test the latest kernel image and I have truble with the backlight. Is > there any pending > work on then? > I take a look at the accelometer code and I saw that It uses bitbang on gpio > and then > use spi code in interrupt context with interrupt disabled, but is it ok to > disable interruput > for message transaction? Whay the spi code must be in the interrupt code?
bitbang in interrupt context... Yes. I read about this sometime ago and there were 2 issues with deferring the operations. The first one was overhead, and the second one were lost samples. You'll find some interesting threads about this in the archives.
