2 ways come to mind. I've done one of them. Others may have better suggestions. 1) After you open the uart, iterate through /proc/, find the uart interrupt thread, and bump it's priority. 2) Set up a background task which polls /proc/ for the uart interrupt thread and bumps the priority. (Sigh, resending since I forgot to use plain-text again...) Austin On Tue, Nov 18, 2014 at 1:11 AM, Lampersperger Andreas <lampersperger.andreas@xxxxxxxxxxxxx> wrote: > Hello, > > does anyone have a hint how modify (increase) the priority of > the serial/uart interrupt on a 3.14.23-rt20 kernel? > > AFAIK the kernel thread for serial communication is created > when the communication starts, but I want to change the > priority when the driver loads (modprobe 8250). > > Thank's for your help! > Andreas > > ------------------------------------------------------------------------------------------------------ > Registergericht: Traunstein / Registry Court: HRB 275 - Sitz / Head Office: Traunreut > Aufsichtsratsvorsitzender / Chairman of Supervisory Board: Rainer Burkhard > Geschäftsführung / Management Board: Thomas Sesselmann (Vorsitzender / Chairman), Michael Grimm > > E-Mail Haftungsausschluss / E-Mail Disclaimer: http://www.heidenhain.de/disclaimer -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
