Am Fri, 5 Jun 2009 10:41:56 -0700 (PDT) schrieb wael showair <showair2...@yahoo.com>:
> My aim is : Each time the DSP-core interrupts the MPC8555 processor, a > process in the user space will be informed by the arrival of this each > interrupt. You should have a look at drivers/uio... > So i decided to use sw signals, in the ISR of the DSP-core interrupt > i send a SW signal to the user space process? Is this the best > solution? are there any better suggestion to achieve my aim? signals are expensive. Look at the UIO-Framework for a cheaper solution. preallocated RT-Signals on the other Hand are fragile. Blocking reads are cheaper and in case of preempt-RT, but not resticted to it, much easier to handle. Bene -- View this message in context: http://www.nabble.com/how-can-i-send-real-time-signal--tp23892580p23906892.html Sent from the linuxppc-dev mailing list archive at Nabble.com. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
