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| author | Alan Stern <stern@rowland.harvard.edu> | 2006-06-01 13:33:42 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-06-21 15:04:15 -0700 |
| commit | 79efa097e75018a2918155f343f0e08e61ee8a8c (patch) | |
| tree | 336237ca96191aeb9cac6ed8706bc479545f3108 /include | |
| parent | efcaa20525fde82bbb4fb8cd9e9016f6fabc6509 (diff) | |
| download | linux-79efa097e75018a2918155f343f0e08e61ee8a8c.tar.gz linux-79efa097e75018a2918155f343f0e08e61ee8a8c.tar.bz2 linux-79efa097e75018a2918155f343f0e08e61ee8a8c.zip | |
[PATCH] usbcore: port reset for composite devices
This patch (as699) adds usb_reset_composite_device(), a routine for
sending a USB port reset to a device with multiple interfaces owned by
different drivers. Drivers are notified about impending and completed
resets through two new methods in the usb_driver structure.
The patch modifieds the usbfs ioctl code to make it use the new routine
instead of usb_reset_device(). Follow-up patches will modify the hub,
usb-storage, and usbhid drivers so they can utilize this new API.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/usb.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/usb.h b/include/linux/usb.h index 317ec9f28bce..5ad30cefe7b2 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -386,6 +386,8 @@ extern int usb_lock_device_for_reset(struct usb_device *udev, /* USB port reset for device reinitialization */ extern int usb_reset_device(struct usb_device *dev); +extern int usb_reset_composite_device(struct usb_device *dev, + struct usb_interface *iface); extern struct usb_device *usb_find_device(u16 vendor_id, u16 product_id); @@ -554,6 +556,10 @@ struct usb_dynids { * do (or don't) show up otherwise in the filesystem. * @suspend: Called when the device is going to be suspended by the system. * @resume: Called when the device is being resumed by the system. + * @pre_reset: Called by usb_reset_composite_device() when the device + * is about to be reset. + * @post_reset: Called by usb_reset_composite_device() after the device + * has been reset. * @id_table: USB drivers use ID table to support hotplugging. * Export this with MODULE_DEVICE_TABLE(usb,...). This must be set * or your driver's probe function will never get called. @@ -592,6 +598,9 @@ struct usb_driver { int (*suspend) (struct usb_interface *intf, pm_message_t message); int (*resume) (struct usb_interface *intf); + void (*pre_reset) (struct usb_interface *intf); + void (*post_reset) (struct usb_interface *intf); + const struct usb_device_id *id_table; struct usb_dynids dynids; |