NAME¶

usb_string_id - allocate an unused string ID

SYNOPSIS¶

int usb_string_id(struct usb_composite_dev * cdev);

ARGUMENTS¶

struct usb_composite_dev * cdev

CONTEXT¶

single threaded during gadget setup

DESCRIPTION¶

usb_string_id() is called from bind callbacks to allocate string IDs. Drivers for functions, configurations, or gadgets will then store that ID in the appropriate descriptors and string table.

All string identifier should be allocated using this, usb_string_ids_tab() or usb_string_ids_n() routine, to ensure that for example different functions don't wrongly assign different meanings to the same identifier.

AUTHOR¶

David Brownell <dbrownell@users.sourceforge.net>

COPYRIGHT¶