diff options
| -rw-r--r-- | drivers/usb/class/cdc-wdm.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index 554ac9077773..19fb5fabe6b9 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -31,6 +31,8 @@ #define DRIVER_AUTHOR "Oliver Neukum" #define DRIVER_DESC "USB Abstract Control Model driver for USB WCM Device Management" +#define HUAWEI_VENDOR_ID 0x12D1 + static const struct usb_device_id wdm_ids[] = { { .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS | @@ -38,6 +40,20 @@ static const struct usb_device_id wdm_ids[] = { .bInterfaceClass = USB_CLASS_COMM, .bInterfaceSubClass = USB_CDC_SUBCLASS_DMM }, + { + /* + * Huawei E392, E398 and possibly other Qualcomm based modems + * embed the Qualcomm QMI protocol inside CDC on CDC ECM like + * control interfaces. Userspace access to this is required + * to configure the accompanying data interface + */ + .match_flags = USB_DEVICE_ID_MATCH_VENDOR | + USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = HUAWEI_VENDOR_ID, + .bInterfaceClass = USB_CLASS_VENDOR_SPEC, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 9, /* NOTE: CDC ECM control interface! */ + }, { } }; |