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path: root/drivers/usb/core/driver.c
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Diffstat (limited to 'drivers/usb/core/driver.c')
-rw-r--r--drivers/usb/core/driver.c36
1 files changed, 14 insertions, 22 deletions
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index 45887a0ff87..d40ff956881 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -45,10 +45,12 @@ ssize_t usb_store_new_id(struct usb_dynids *dynids,
struct usb_dynid *dynid;
u32 idVendor = 0;
u32 idProduct = 0;
+ unsigned int bInterfaceClass = 0;
int fields = 0;
int retval = 0;
- fields = sscanf(buf, "%x %x", &idVendor, &idProduct);
+ fields = sscanf(buf, "%x %x %x", &idVendor, &idProduct,
+ &bInterfaceClass);
if (fields < 2)
return -EINVAL;
@@ -60,6 +62,10 @@ ssize_t usb_store_new_id(struct usb_dynids *dynids,
dynid->id.idVendor = idVendor;
dynid->id.idProduct = idProduct;
dynid->id.match_flags = USB_DEVICE_ID_MATCH_DEVICE;
+ if (fields == 3) {
+ dynid->id.bInterfaceClass = (u8)bInterfaceClass;
+ dynid->id.match_flags |= USB_DEVICE_ID_MATCH_INT_CLASS;
+ }
spin_lock(&dynids->lock);
list_add_tail(&dynid->node, &dynids->list);
@@ -1073,17 +1079,10 @@ static int usb_suspend_interface(struct usb_device *udev,
goto done;
driver = to_usb_driver(intf->dev.driver);
- if (driver->suspend) {
- status = driver->suspend(intf, msg);
- if (status && !PMSG_IS_AUTO(msg))
- dev_err(&intf->dev, "%s error %d\n",
- "suspend", status);
- } else {
- /* Later we will unbind the driver and reprobe */
- intf->needs_binding = 1;
- dev_warn(&intf->dev, "no %s for driver %s?\n",
- "suspend", driver->name);
- }
+ /* at this time we know the driver supports suspend */
+ status = driver->suspend(intf, msg);
+ if (status && !PMSG_IS_AUTO(msg))
+ dev_err(&intf->dev, "suspend error %d\n", status);
done:
dev_vdbg(&intf->dev, "%s: status %d\n", __func__, status);
@@ -1132,16 +1131,9 @@ static int usb_resume_interface(struct usb_device *udev,
"reset_resume", driver->name);
}
} else {
- if (driver->resume) {
- status = driver->resume(intf);
- if (status)
- dev_err(&intf->dev, "%s error %d\n",
- "resume", status);
- } else {
- intf->needs_binding = 1;
- dev_warn(&intf->dev, "no %s for driver %s?\n",
- "resume", driver->name);
- }
+ status = driver->resume(intf);
+ if (status)
+ dev_err(&intf->dev, "resume error %d\n", status);
}
done: