diff options
| author | Benoit Goby <benoit@android.com> | 2011-05-25 23:59:43 -0700 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:38:41 -0800 |
| commit | d74a4a005ef4fd02a5fef4e7565fc7c09fad1136 (patch) | |
| tree | 3c3f6b3a724a0e380a9e62d317aca32cac1d5937 /include/linux/usb/composite.h | |
| parent | b474bbbd4844d36dbc41775a559cde3375f0eefe (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/usb/composite.h')
| -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 86004e313bd1..a0229f7e598e 100644 --- a/include/linux/usb/composite.h +++ b/include/linux/usb/composite.h @@ -251,6 +251,9 @@ 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. |