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| author | Greg Kroah-Hartman <gregkh@suse.de> | 2005-11-16 13:41:28 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-01-04 13:48:32 -0800 |
| commit | 733260ff9c45bd4db60f45d17e8560a4a68dff4d (patch) | |
| tree | e7f09a9a9e2d7a9f22288c9777f7b03906a89e20 /include | |
| parent | ddae41be6145f5f9cb4e6df35661a09121b90672 (diff) | |
| download | lwn-733260ff9c45bd4db60f45d17e8560a4a68dff4d.tar.gz lwn-733260ff9c45bd4db60f45d17e8560a4a68dff4d.zip | |
[PATCH] USB: add dynamic id functionality to USB core
Echo the usb vendor and product id to the "new_id" file in the driver's
sysfs directory, and then that driver will be able to bind to a device
with those ids if it is present.
Example:
echo 0557 2008 > /sys/bus/usb/drivers/foo_driver/new_id
adds the hex values 0557 and 2008 to the device id table for the foo_driver.
Note, usb-serial drivers do not currently work with this capability yet.
usb-storage also might have some oddities.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/usb.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/usb.h b/include/linux/usb.h index d81b050e5955..0dd96ef78c13 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -529,6 +529,11 @@ static inline int usb_make_path (struct usb_device *dev, char *buf, /* ----------------------------------------------------------------------- */ +struct usb_dynids { + spinlock_t lock; + struct list_head list; +}; + /** * struct usb_driver - identifies USB driver to usbcore * @owner: Pointer to the module owner of this driver; initialize @@ -553,6 +558,8 @@ static inline int usb_make_path (struct usb_device *dev, char *buf, * @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. + * @dynids: used internally to hold the list of dynamically added device + * ids for this driver. * @driver: the driver model core driver structure. * * USB drivers must provide a name, probe() and disconnect() methods, @@ -588,6 +595,7 @@ struct usb_driver { const struct usb_device_id *id_table; + struct usb_dynids dynids; struct device_driver driver; }; #define to_usb_driver(d) container_of(d, struct usb_driver, driver) |