Hi,
...
On 29.11.20 г. 22:51 ч., Pavel Machek wrote:
It looks like you may also have a problem with tty hangups, which serdev
does not support currently. There are multiple paths in n_gsm which can
trigger a hangup (e.g. based on remote input) and would likely lead to a
crash
I don't believe we need to support hangups for the Droid 4, but
obviously it would be good not to crash. But I don't know where to
start looking, do you have any hints?
I changed the patch so it calls tty_port_register_device_serdev, ported
gnss driver to use serdev_device, got it working:
root@devuan-droid4:~# cat /dev/gnss0
$GPGGA,,,,,,0,,,,,,,,*66
$GNGNS,,,,,,NN,,,,,,*53
$GNGNS,,,,,,NN,,,,,,*53
$GNGNS,,,,,,NN,,,,,,*53
$GPVTG,,T,,M,,N,,K,N*2C
$GPRMC,,V,,,,,,,,,,N*53
$GPGSA,A,1,,,,,,,,,,,,,,,*1E
$GLGSV,1,1,01,255,,,37*52
$GPGGA,,,,,,0,,,,,,,,*66
$GNGNS,,,,,,NN,,,,,,*53
$GNGNS,,,,,,NN,,,,,,*53
$GNGNS,,,,,,NN,,,,,,*53
However, I get:
gsmtty gsmtty4: tty_hangup: tty->count(1) != (#fd's(0) + #kopen's(0))
when closing /dev/gnss0
Any hint what shall be implemented in serdev to properly handle hangups?
Or, shall I ignore that warning?
Regards,
Ivo
