USB_COMPOSITE_PROBE

NAME

SYNOPSIS

int usb_composite_probe(struct usb_composite_driver * driver, int (*bind) (struct usb_composite_dev *cdev));

ARGUMENTS

driver

the driver to register

bind

the callback used to allocate resources that are shared across the whole device, such as string IDs, and add its configurations using usb_add_config(). This may fail by returning a negative errno value; it should return zero on successful initialization.

CONTEXT

single threaded during gadget setup  

DESCRIPTION

This function is used to register drivers using the composite driver framework. The return value is zero, or a negative errno value. Those values normally come from the driver's bind method, which does all the work of setting up the driver to match the hardware.

On successful return, the gadget is ready to respond to requests from the host, unless one of its components invokes usb_gadget_disconnect while it was binding. That would usually be done in order to wait for some userspace participation.  

AUTHOR

David Brownell <dbrownell@users.sourceforge.net>

Author.

COPYRIGHT