Dear Johan, The last interface is used for Qualcomm WWAN module's QDSS(Qualcomm Debug Sub-System) port. Users use the QDSS interface to acquire Modem subsystem log. It is used to work with DIAG port. Therefore, we don't have to bind this interface with any driver. -----邮件原件----- 发件人: Johan Hovold <johan@xxxxxxxxxx> 发送时间: 2022年7月24日 16:41 收件人: Yonglin Tan <yonglin.tan@xxxxxxxxxxx> 抄送: gregkh@xxxxxxxxxxxxxxxxxxx; linux-usb@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx 主题: Re: [PATCH] USB: serial: option: add Quectel EM060K modem On Tue, Jul 19, 2022 at 07:28:00PM +0800, Yonglin Tan wrote: > Add usb product id entry for the Quectel EM060K module. > > "MBIM mode": DIAG + NMEA + AT + MODEM + MBIM > > T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 8 Spd=480 MxCh= 0 > D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 > P: Vendor=2c7c ProdID=030b Rev= 5.04 > S: Manufacturer=Quectel > S: Product=EM060K-GL > S: SerialNumber=89fb57db > C:* #Ifs= 7 Cfg#= 1 Atr=a0 MxPwr=500mA > A: FirstIf#= 8 IfCount= 2 Cls=02(comm.) Sub=0e Prot=00 > I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option > E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms > E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms > I:* If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=40 Driver=option > E: Ad=83(I) Atr=03(Int.) MxPS= 10 Ivl=32ms > E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms > E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms > I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option > E: Ad=85(I) Atr=03(Int.) MxPS= 10 Ivl=32ms > E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms > E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms > I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option > E: Ad=87(I) Atr=03(Int.) MxPS= 10 Ivl=32ms > E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms > E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms > I:* If#= 8 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0e Prot=00 Driver=cdc_mbim > E: Ad=88(I) Atr=03(Int.) MxPS= 64 Ivl=32ms > I: If#= 9 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim > I:* If#= 9 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim > E: Ad=8e(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms > E: Ad=0f(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms > I:* If#=12 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=70 Driver=(none) > E: Ad=89(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms What's this last interface used for? Johan
