On Mon 2018-12-31 14:23:29, Tony Lindgren wrote: > * Pavel Machek <pavel@xxxxxx> [181231 21:54]: > > Is it possible that epoll() does not work properly with /dev/motmdm*? > > I am debugging weird problems with ofonod, and that would be an > > explanation... > > > > epoll.poll() should be returning list of file descriptors and if they > > are ready. And it seems to work for ttyUSB4 but not for motmdm. > > > > Hmm. And motmdm_cdev_poll() lacks EPOLLOUT() support, right? That > > could explain things... > > Hmm yeah maybe. > > FYI, I just pushed a test script into github droid4-sms-tools repo > for sending SMS and a related kernel fix for ctrl-z termination > into k.o droid4-pending-mdm-v4.20 branch. > > But that seems to fix a different issue from what you're seeing. Yes, I can easily work around the problem like this: It needs huge fixme there, but if you could include it... "always ready" is better than "never ready". I'm currently adding code to ofono... I can decode incoming SMS. Current is here. https://github.com/pavelmachek/ofono Have you figured out how the incoming calls are supposed to work? I'm getting this on incoming call: ofonod[2534]: Voice: < ~+WAKEUP\n\r ignoring line ofonod[2534]: Voice: < ~+WAKEUP\n\r ignoring line ofonod[2534]: Voice: < ~+WAKEUP\n\r ignoring line ofonod[2534]: Voice: < ~+CIEV=1,4,0\n\r ignoring line ofonod[2534]: Voice: < ~+CLIP="+420xxxxxxxxx",1,1,"",0,"",0\n\r ignoring line ofonod[2534]: Voice: < ~+WAKEUP\n\r ignoring line ofonod[2534]: Voice: < ~+WAKEUP\n\r ignoring line ofonod[2534]: Voice: < ~+WAKEUP\n\r ignoring line ofonod[2534]: Voice: < ~+CIEV=1,0,0\n\r ignoring line ofonod[2534]: Voice: < ~+WAKEUP\n\r ignoring line ofonod[2534]: Voice: < ~+WAKEUP\n\r ignoring line ofonod[2534]: Voice: < ~+WAKEUP\n\r I probably could use +CLIP as "there's incoming call", but I don't see anything useful when I hang up and phone should stop ringing. Best regards, Pavel diff --git a/drivers/mfd/motorola-mdm.c b/drivers/mfd/motorola-mdm.c index 2cdc9e8..abf58e3 100644 --- a/drivers/mfd/motorola-mdm.c +++ b/drivers/mfd/motorola-mdm.c @@ -706,6 +706,7 @@ static __poll_t motmdm_cdev_poll(struct file *file, poll_table *wait) mask |= EPOLLIN | EPOLLRDNORM; if (cdata->disconnected) mask |= EPOLLHUP; + mask |= (EPOLLOUT | EPOLLWRNORM); return mask; } -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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