Bjørn Mork <bjorn@xxxxxxx> writes: > Bjørn Mork <bjorn@xxxxxxx> writes: > >> Ideally the modem firmware should have handled this gracefully, but I >> don't expect that to really happen... > > FWIW, Sierra Wireless have obviously implemented mutual exclusion > between PPP and ethernet emulation in their firmware. [..] > Attempting PPP while connected via QMI/wwan: > > nemi:/home/bjorn# pppd noauth debug nodetach connect "chat -V '' ATDT*99# ABORT 'NO CARRIER' CONNECT" /dev/ttyUSB2 > ATDT*99# > NO CARRIERScript chat -V '' ATDT*99# ABORT 'NO CARRIER' CONNECT finished (pid 26609), status = 0x4 > Connect script failed Yuck, you would think that I had learned not jumping to conclusions by now, but no.... The above failed because the mobile network refused multiple connections to the same APN. There are no problems establishing concurrent PPP and QMI based connections using two different APNs. No mutual exclusion necessary. Both connections work. Bjørn -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
