diff options
author | Benoit Goby <benoit@android.com> | 2011-05-25 23:59:43 -0700 |
---|---|---|
committer | Praneeth Bajjuri <praneeth@ti.com> | 2011-09-20 13:44:11 -0700 |
commit | 402060fb1939e2434e38c436ad6e3adeb5cc563a (patch) | |
tree | e9b00ef3829ca7e429fdc942efdedb23f9658ac1 /include/linux | |
parent | 4754423c3227cd74f3d642339217777a263a4bcd (diff) |
usb: gadget: composite: Add usb_remove_config
This allows composite drivers to dynamically change their configuration.
For example, a driver might remove a configuration and register a new
one with a different set of functions.
User should prevent the host from enumerating the device while changing
the configuration:
usb_gadget_disconnect(cdev->gadget);
usb_remove_config(cdev, old_config);
usb_add_config(cdev, new_config, new_conf_bind);
usb_gadget_connect(cdev->gadget);
Change-Id: Icbfb4ce41685fde9bf63d5d58fca1ad242aa69f9
Signed-off-by: Benoit Goby <benoit@android.com>
Diffstat (limited to 'include/linux')
-rw-r--r-- | include/linux/usb/composite.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h index 10b0a122aa7..cb65fa2c016 100644 --- a/include/linux/usb/composite.h +++ b/include/linux/usb/composite.h @@ -249,6 +249,9 @@ int usb_add_config(struct usb_composite_dev *, struct usb_configuration *, int (*)(struct usb_configuration *)); +int usb_remove_config(struct usb_composite_dev *, + struct usb_configuration *); + /** * struct usb_composite_driver - groups configurations into a gadget * @name: For diagnostics, identifies the driver. |