Openmoko Bug #2185: AUX button makes interrupt storm
Openmoko Public Trac
bugs at docs.openmoko.org
Sat Dec 20 10:25:02 CET 2008
#2185: AUX button makes interrupt storm
---------------------+------------------------------------------------------
Reporter: vnevoa | Owner: openmoko-devel
Type: defect | Status: new
Priority: normal | Milestone:
Component: unknown | Version: Om2008.9-dev
Severity: normal | Keywords: AUX button interrupts
Haspatch: 0 | Blockedby:
Estimated: | Patchreview:
Blocking: | Reproducible: always
---------------------+------------------------------------------------------
I have difficulty using the AUX button on my GTA02v5 to lock/unlock the
phone.
When I press it, it locks, but when I release it, it unlocks again.
Sometimes it works as intended, but most times it takes a handful of tries
to (un)lock it.
This is a recent problem for me, but I can't decide if it is a hardware or
software problem.
Looking at "/proc/interrupts", I can see an interrupt storm each time the
button is pressed or released.
Initial state:
root at om-gta02:~# cat /proc/interrupts | grep AUX
50: 373 s3c-ext Neo1973 AUX button
Press the button:
root at om-gta02:~# cat /proc/interrupts | grep AUX
50: 375 s3c-ext Neo1973 AUX button
Release the button:
root at om-gta02:~# cat /proc/interrupts | grep AUX
50: 384 s3c-ext Neo1973 AUX button
So, pressing the button causes a couple of interrupts, and releasing it
causes almost 10.
I expected the hardware to filter out these bounces. Is it a hardware or
kernel problem?
--
Ticket URL: <https://docs.openmoko.org/trac/ticket/2185>
docs.openmoko.org <http://docs.openmoko.org/trac/>
openmoko trac
More information about the devel
mailing list