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path: root/drivers/usb/class/cdc-wdm.c
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Diffstat (limited to 'drivers/usb/class/cdc-wdm.c')
-rw-r--r--drivers/usb/class/cdc-wdm.c27
1 files changed, 2 insertions, 25 deletions
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index 8fd398dffced..65a55abb791f 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -32,8 +32,6 @@
#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 |
@@ -41,29 +39,6 @@ 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! */
- },
- {
- /* Vodafone/Huawei K5005 (12d1:14c8) and similar modems */
- .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 = 57, /* NOTE: CDC ECM control interface! */
- },
{ }
};
@@ -500,6 +475,8 @@ retry:
goto retry;
}
if (!desc->reslength) { /* zero length read */
+ dev_dbg(&desc->intf->dev, "%s: zero length - clearing WDM_READ\n", __func__);
+ clear_bit(WDM_READ, &desc->flags);
spin_unlock_irq(&desc->iuspin);
goto retry;
}