Hi Aleksander, Ok. Anyway, I am backporting the last mhi driver from Linux 5.15 to 4.19. I have compiled the driver successfully and loaded it to the target. The /dev/wwan0qmi0 is not there, because I did not take the drivers/net/wwan directory. I need to take them and rebuild and see whether the ModemManager is coming up or not.
Thanks, Senthil On Mon, Feb 7, 2022 at 2:42 PM Aleksander Morgado <aleksan...@aleksander.es> wrote: > Hey! > > >> I did use the following driver that you have shared earlier. Is that >> below not the correct one ? I have copied the below into my kernel which is >> 4.19. >> >> ttps://github.com/kristrev/mhi-for-kernel-4.14 >> <https://github.com/kristrev/mhi-for-kernel-4.14> >> >> > Oh, really? Does this mean that 4.14 backport doesn't have the WWAN > subsystem support? I truly believed it would have had it, or so I was told > by some dev team that had tested it. Sorry if that's not the case :/ If so, > it would mean the backport from that repo isn't usable for MM. I have my > own patch-by-patch backport to 5.4 including the wwan subsystem, but > haven't tried to go back further yet, not sure how complex that would be to > include everything for 4.14. > > Not sure if I'm missing something, but I definitely wouldn't have expected > the mhi0_QMI port name. > > -- > Aleksander > https://aleksander.es >
