Messages in this thread |  | | Date | Tue, 3 Apr 2018 17:50:24 +0200 | From | Pavel Machek <> | Subject | Re: call/normal switch was Re: omap4-droid4: voice call support was |
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Hi!
> > OK thanks for checking. So probably only n_gsm channel 1 is for normal > > Qualcomm at commands, and then channel 2 and others are commands > > implemented by Motorola on the mdm6600. > > > > I guess we'd have to add support for reading and writing to > > /dev/gsmtty2 at least as it looks like these cannot be accessed > > via /dev/ttyUSB4. Or at least I have not figured out any other > > way to access them. > > Hmm or maybe there is some way to select where qmi to tunnels the > AT commands to? Some kind of channel type paramenter like n_gsm > has? > > Anyways, for trying to figure out things for alsamixer, I tested > that ngsm 2 "AT+EACC=3,0" is not related to cpcap audio register > settings and the mic is enabled during the call with Pavel's patch > with alsamixer "Mode" set to either "Call" or "Normal". Also speaker > keeps working during the call toggling between "Call" and "Normal". > "Voice" in alsamixer does also control the speaker volume during > the call. And setting the second "Speaker" from "Voice" to "HiFi" > mutes the speaker.
Take a look at the patch. Selecting "call" does something at hardware level, selecting "normal" is a nop.
Sorry for confusion.
Yes, that patch needs more work.
Pavel
-- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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