Messages in this thread | | | Subject | Re: [PATCH] USB: serial: option: adding support for ublox R410M | From | Lars Melin <> | Date | Thu, 26 Apr 2018 23:22:25 +0700 |
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On 4/26/2018 23:12, Johan Hovold wrote: > On Thu, Apr 26, 2018 at 06:40:46PM +0700, Lars Melin wrote: >> On 4/26/2018 18:39, Lars Melin wrote: >>> On 4/26/2018 18:19, Bjørn Mork wrote: >>>> Anyway, Qualcomm based designs are definitely handled by both drivers. >>>> Using qcserial only makes sense if the interface layout matches one of >>>> the defined shared schemes, which currently are: >>>> >>>> QCSERIAL_G2K = 0, /* Gobi 2000 */ >>>> QCSERIAL_G1K = 1, /* Gobi 1000 */ >>>> QCSERIAL_SWI = 2, /* Sierra Wireless */ >>>> QCSERIAL_HWI = 3, /* Huawei */ >>> >>> It seems to me that this Quectel device matches the interface layout for >>> Gobi1K: >>> >>> * Gobi 1K USB layout: >>> * 0: DM/DIAG (use libqcdm from ModemManager for communication) >>> * 1: serial port (doesn't respond) >>> * 2: AT-capable modem port >>> * 3: QMI/net >>> */ > >> Ublox, not Quectel.. > > Yeah, but qcserial appears to select a different altsetting for the DM > port for Gobi 1000, an altsetting which this particular device does not > have. > > I didn't re-read the full thread I referred to earlier, but I think in > it, Dan mentioned Gobi 1000 device requiring firmware to be loaded too. > > So if it's not a G1K device, we probably shouldn't be using qcserial > even if the interface layout happens to match. > > Thanks, > Johan
Good point, I forgot about the required firmware loading for Gobi1K. So this device should be handled by the option driver.
/Lars
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