Re: [PATCH] USB: serial: option: add new usb-id for Dell Wireless DW5826e-m

[Lars Melin <larsm17@gmail.com>]

On 2026-06-01 09:52, Jack Wu via B4 Relay wrote:
> From: Jack Wu <jackbb_wu@compal.com>
> 
> Add support for Dell DW5826e-m with USB-id 0x413c:0x81ea
> 
> T:  Bus=03 Lev=01 Prnt=01 Port=04 Cnt=01 Dev#=  8 Spd=480  MxCh= 0
> D:  Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
> P:  Vendor=413c ProdID=81ea Rev= 5.04
> S:  Manufacturer=DELL
> S:  Product=DW5826e-m Qualcomm Snapdragon X12 Global LTE-A
> S:  SerialNumber=358988870177734
> C:* #Ifs= 7 Cfg#= 1 Atr=a0 MxPwr=500mA
> A:  FirstIf#=12 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= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=usbfs
> E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=60 Driver=option
> E:  Ad=84(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
> E:  Ad=83(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=86(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
> E:  Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 4 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
> E:  Ad=87(I) Atr=03(Int.) MxPS=  64 Ivl=32ms
> I:* If#=12 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#=13 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
> I:* If#=13 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
> 
> Signed-off-by: Jack Wu <jackbb_wu@compal.com>
> ---
>   drivers/usb/serial/option.c | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
> index 48ae0188f2e9..e37013a6956a 100644
> --- a/drivers/usb/serial/option.c
> +++ b/drivers/usb/serial/option.c
> @@ -203,6 +203,8 @@ static void option_instat_callback(struct urb *urb);
>   #define DELL_PRODUCT_5829E_ESIM			0x81e4
>   #define DELL_PRODUCT_5829E			0x81e6
>   
> +#define DELL_PRODUCT_DW5826E_ESIM	0x81ea
> +
>   #define DELL_PRODUCT_FM101R_ESIM		0x8213
>   #define DELL_PRODUCT_FM101R			0x8215
>   
> @@ -1125,6 +1127,7 @@ static const struct usb_device_id option_ids[] = {
>   	  .driver_info = RSVD(0) | RSVD(6) },
>   	{ USB_DEVICE_INTERFACE_CLASS(DELL_VENDOR_ID, DELL_PRODUCT_FM101R, 0xff) },
>   	{ USB_DEVICE_INTERFACE_CLASS(DELL_VENDOR_ID, DELL_PRODUCT_FM101R_ESIM, 0xff) },
> +	{ USB_DEVICE_INTERFACE_CLASS(DELL_VENDOR_ID, DELL_PRODUCT_DW5826E_ESIM, 0xff) },
>   	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },	/* ADU-E100, ADU-310 */
>   	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
>   	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
> 
> ---
> base-commit: e43ffb69e0438cddd72aaa30898b4dc446f664f8
> change-id: 20260601-dw5826e-option-driver-e9bac038e2b5
> 
> Best regards,
> --
> Jack Wu <jackbb_wu@compal.com>
> 
> 
> 
Hi Jack,
you have the device in the correct driver now and you have got rid of 
the legal disclaimer but there is still a problem with the patch.
Interface #1 which is for ADB should not be claimed by the option 
driver, you have to add a line blacklisting (reserving)it.

thanks
Lars