Hi Aleksander, Thanks for your support. I am trying to backport the WWAN system for my kernel. Just a thought. Is there any possibility that we make the modem manager know that there is no WWAN subsystem rather than use "/dev/mhi0_QMI" to detect the modem?
Thanks, Senthil On Mon, Feb 7, 2022 at 2:49 PM Senthil Kumaresan <sekumarej...@gmail.com> wrote: > 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 >> >
