Messages in this thread | | | Date | Tue, 10 Apr 2018 13:09:44 +0200 | From | Pavel Machek <> | Subject | Re: [PATCH 1/2] tty: n_gsm: Fix long delays with control frame timeouts in ADM mode |
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On Mon 2018-04-09 06:42:59, Tony Lindgren wrote: > * Pavel Machek <pavel@ucw.cz> [180409 10:56]: > > Ok, I should have all that enabled. But droid4-ngsm still fails: > > > > user@devuan:/my/droid4-ngsm$ sudo ./droid4-ngsm > > Starting ngsm.. > > Testing ngsm.. > > Could not open /dev/gsmtty1: Level 2 halted > > Trying to start ngsm again: Level 2 halted > > Starting ngsm.. > > I guess you must have phy-mapphone-mdm6600 enabled as you a have > working modem over USB. What do you see in dmesg if you enable n_gsm > debug with modprobe n_gsm debug=0xff or on kernel cmdline?
Ok, I guess I can do that, but first:
Should the modem respond to AT commands on ttyS0? I launched minicom (115200 8N1) and I'm not getting any responses.
> > commit 984c7706ff180e33096c57183435d925cb644576 says: > > > > ARM: dts: omap4-droid4: Configure uart1 pins > > > > These are needed to use the n_gsm driver for TS 27.010 UART > > multiplexing. Note that support for the OOB wake gpio is still > > missing so the UART is not yet usable for n_gsm. > > > > ...am I still missing the OOB wake gpio support? > > We can get away without OOB wake gpio for a while as mdm6600 is not > yet suspended over USB. But if you have manually suspended mdm6600 > USB interface via /sys, then it won't respond properly on n_gsm > either.
Ahha, ok.
Thanks, Pavel
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