Daniele Palmas <dnlplm@xxxxxxxxx> writes: > Telit LE922A MBIM based composition does not work properly > with altsetting toggle done in cdc_ncm_bind_common. > > This patch adds CDC_MBIM_FLAG_AVOID_ALTSETTING_TOGGLE quirk > to avoid this procedure that, instead, is mandatory for > other modems. > > Signed-off-by: Daniele Palmas <dnlplm@xxxxxxxxx> Thanks. This looks as nice as we can possibly do for now. I am happy to add Reviewed-by: Bjørn Mork <bjorn@xxxxxxx> This patch also helped me understanding the problem you face even better: It's not the "set_altsetting 0" that's causing problems, but the "set_altsetting X" prior to that. And that is certainly not something that a firmware should expect. I will look at the Huawei modem again when I get some time and see if there is any way we can possibly avoid it. 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