struct_usb_composite_driver(9) [suse man page]

STRUCT 
USB_COMPOSITE(9) 				      Kernel Mode Gadget API					   STRUCT USB_COMPOSITE(9)

NAME

       struct_usb_composite_driver - groups configurations into a gadget

SYNOPSIS

       struct usb_composite_driver {
	 const char * name;
	 const struct usb_device_descriptor * dev;
	 struct usb_gadget_strings ** strings;
	 int (* bind) (struct usb_composite_dev *);
	 int (* unbind) (struct usb_composite_dev *);
	 void (* suspend) (struct usb_composite_dev *);
	 void (* resume) (struct usb_composite_dev *);
       };

MEMBERS

       name
	   For diagnostics, identifies the driver.

       dev
	   Template descriptor for the device, including default device identifiers.

       strings
	   tables of strings, keyed by identifiers assigned during bind and language IDs provided in control requests

       bind
	   (REQUIRED) 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.

       unbind
	   Reverses bind(); called as a side effect of unregistering this driver.

       suspend
	   Notifies when the host stops sending USB traffic, after function notifications

       resume
	   Notifies configuration when the host restarts USB traffic, before function notifications

DESCRIPTION

       Devices default to reporting self powered operation. Devices which rely on bus powered operation should report this in their bind() method.

       Before returning from bind, various fields in the template descriptor may be overridden. These include the idVendor/idProduct/bcdDevice
       values normally to bind the appropriate host side driver, and the three strings (iManufacturer, iProduct, iSerialNumber) normally used to
       provide user meaningful device identifiers. (The strings will not be defined unless they are defined in dev and strings.) The correct ep0
       maxpacket size is also reported, as defined by the underlying controller driver.

AUTHOR

       David Brownell <dbrownell@users.sourceforge.net>
	   Author.

COPYRIGHT

Kernel Hackers Manual 2.6.					     July 2010						   STRUCT USB_COMPOSITE(9)

Check Out this Related Man Page

STRUCT 
USB_COMPOSITE(9) 				      Kernel Mode Gadget API					   STRUCT USB_COMPOSITE(9)

NAME

       struct_usb_composite_dev - represents one composite usb gadget

SYNOPSIS

       struct usb_composite_dev {
	 struct usb_gadget * gadget;
	 struct usb_request * req;
	 struct usb_configuration * config;
       };

MEMBERS

       gadget
	   read-only, abstracts the gadget's usb peripheral controller

       req
	   used for control responses; buffer is pre-allocated

       config
	   the currently active configuration

DESCRIPTION

       One of these devices is allocated and initialized before the associated device driver's bind is called.

OPEN ISSUE

       it appears that some WUSB devices will need to be built by combining a normal (wired) gadget with a wireless one. This revision of the
       gadget framework should probably try to make sure doing that won't hurt too much.

ONE NOTION FOR HOW TO HANDLE WIRELESS USB DEVICES INVOLVES

       (a) a second gadget here, discovery mechanism TBD, but likely needing separate "register/unregister WUSB gadget" calls; (b) updates to
       usb_gadget to include flags "is it wireless", "is it wired", plus (presumably in a wrapper structure) bandgroup and PHY info; (c)
       presumably a wireless_ep wrapping a usb_ep, and reporting wireless-specific parameters like maxburst and maxsequence; (d) configurations
       that are specific to wireless links; (e) function drivers that understand wireless configs and will support wireless for (additional)
       function instances; (f) a function to support association setup (like CBAF), not necessarily requiring a wireless adapter; (g) composite
       device setup that can create one or more wireless configs, including appropriate association setup support; (h) more, TBD.

AUTHOR

       David Brownell <dbrownell@users.sourceforge.net>
	   Author.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						   STRUCT USB_COMPOSITE(9)

Linux and UNIX Man Pages

struct_usb_composite_driver(9) [suse man page]

Check Out this Related Man Page