diff options
Diffstat (limited to 'drivers/usb/core/usb.c')
| -rw-r--r-- | drivers/usb/core/usb.c | 63 |
1 files changed, 23 insertions, 40 deletions
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 2493e7d9f5b3..4eca4904938f 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -569,6 +569,7 @@ static int usb_hotplug (struct device *dev, char **envp, int num_envp, { struct usb_interface *intf; struct usb_device *usb_dev; + struct usb_host_interface *alt; int i = 0; int length = 0; @@ -585,7 +586,8 @@ static int usb_hotplug (struct device *dev, char **envp, int num_envp, intf = to_usb_interface(dev); usb_dev = interface_to_usbdev (intf); - + alt = intf->cur_altsetting; + if (usb_dev->devnum < 0) { pr_debug ("usb %s: already deleted?\n", dev->bus_id); return -ENODEV; @@ -627,46 +629,27 @@ static int usb_hotplug (struct device *dev, char **envp, int num_envp, usb_dev->descriptor.bDeviceProtocol)) return -ENOMEM; - if (usb_dev->descriptor.bDeviceClass == 0) { - struct usb_host_interface *alt = intf->cur_altsetting; + if (add_hotplug_env_var(envp, num_envp, &i, + buffer, buffer_size, &length, + "INTERFACE=%d/%d/%d", + alt->desc.bInterfaceClass, + alt->desc.bInterfaceSubClass, + alt->desc.bInterfaceProtocol)) + return -ENOMEM; - /* 2.4 only exposed interface zero. in 2.5, hotplug - * agents are called for all interfaces, and can use - * $DEVPATH/bInterfaceNumber if necessary. - */ - if (add_hotplug_env_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "INTERFACE=%d/%d/%d", - alt->desc.bInterfaceClass, - alt->desc.bInterfaceSubClass, - alt->desc.bInterfaceProtocol)) - return -ENOMEM; - - if (add_hotplug_env_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "MODALIAS=usb:v%04Xp%04Xd%04Xdc%02Xdsc%02Xdp%02Xic%02Xisc%02Xip%02X", - le16_to_cpu(usb_dev->descriptor.idVendor), - le16_to_cpu(usb_dev->descriptor.idProduct), - le16_to_cpu(usb_dev->descriptor.bcdDevice), - usb_dev->descriptor.bDeviceClass, - usb_dev->descriptor.bDeviceSubClass, - usb_dev->descriptor.bDeviceProtocol, - alt->desc.bInterfaceClass, - alt->desc.bInterfaceSubClass, - alt->desc.bInterfaceProtocol)) - return -ENOMEM; - } else { - if (add_hotplug_env_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "MODALIAS=usb:v%04Xp%04Xd%04Xdc%02Xdsc%02Xdp%02Xic*isc*ip*", - le16_to_cpu(usb_dev->descriptor.idVendor), - le16_to_cpu(usb_dev->descriptor.idProduct), - le16_to_cpu(usb_dev->descriptor.bcdDevice), - usb_dev->descriptor.bDeviceClass, - usb_dev->descriptor.bDeviceSubClass, - usb_dev->descriptor.bDeviceProtocol)) - return -ENOMEM; - } + if (add_hotplug_env_var(envp, num_envp, &i, + buffer, buffer_size, &length, + "MODALIAS=usb:v%04Xp%04Xd%04Xdc%02Xdsc%02Xdp%02Xic%02Xisc%02Xip%02X", + le16_to_cpu(usb_dev->descriptor.idVendor), + le16_to_cpu(usb_dev->descriptor.idProduct), + le16_to_cpu(usb_dev->descriptor.bcdDevice), + usb_dev->descriptor.bDeviceClass, + usb_dev->descriptor.bDeviceSubClass, + usb_dev->descriptor.bDeviceProtocol, + alt->desc.bInterfaceClass, + alt->desc.bInterfaceSubClass, + alt->desc.bInterfaceProtocol)) + return -ENOMEM; envp[i] = NULL; |