[LAU] new rtirq release (was: Re: Issue with the priority of the sound cards using rtirq)

On 05/03/2012 10:00 AM, Fernando Lopez-Lezcano wrote: Some good news! Something has changed from 2.6.33 to 3.2.x... This finds all irq setup calls on the 3.2 kernel tree: find sound/ -type f -exec grep -2 request_irq {] \; -print The fourth argument to that call is what is going to be shown in the ps listing. Now, I found that all _pci_ cards in 3.2.x have KBUILD_MODNAME as the fourth argument (that was not the case before!). So anything starting with "snd_" is going to be a soundcard, so rtirq could have another special case for that. Rui: this addition/hack in rtirq takes care of snd_hda_intel in my 3.2.16-rt27 system and will presumably do the right thing for any other pci soundcards: ---- # Special for kernel-rt >= 2.6.31, where one can # prioritize shared IRQs by device driver (NAME2)... # first try with irq names that start with snd_ PIDS=`ps -eo pid,comm | egrep -i "IRQ.${IRQ}.snd_.*" | awk '{print $1}'` if [ -n "${PIDS}" ] then RTIRQ_TRAIL=":${IRQ}${RTIRQ_TRAIL}" else # try with the name reported in /proc/asound/cards PIDS=`ps -eo pid,comm | egrep -i "IRQ.${IRQ}.${NAME2:0:8}" | awk '{print $1}'` if [ -n "${PIDS}" ] then RTIRQ_TRAIL=":${IRQ}${RTIRQ_TRAIL}" else # Backward compability for older kernel-rt < 2.6.31... PIDS=`ps -eo pid,comm | egrep -i "IRQ.${IRQ}" | awk '{print $1}'` if [ -n "${PIDS}" ] then RTIRQ_TRAIL=":${IRQ}${RTIRQ_TRAIL}" fi fi fi ----