Johan Hovold <johan@xxxxxxxxxx> writes: > On Tue, Mar 19, 2019 at 10:54:00AM +0000, Måns Rullgård wrote: >> Johan Hovold <johan@xxxxxxxxxx> writes: > >> >> Regardless, setting the NCTRL flag should be harmless. >> > >> > Well, there are devices that depend on getting these requests, at least >> > for the QMI interface. But we can always revert if anyone complains. >> >> The QMI interface doesn't even pretend to be a uart. The other ones do, >> but there isn't actually any real uart behind them. For instance, it >> doesn't matter what baud rate one sets. > > Sure, but some devices still require "DTR" to be set for the QMI > interface, so there not being any real uart is no guarantee that there > is no firmware that expects these calls. Now I'm thoroughly confused. The QMI interface has a completely separate driver that creates a network device (if I'm reading the code correctly). -- Måns Rullgård
