USB_GADGET_GET_STRING

Section: (9)
Updated: 14 August 2003
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NAME

usb_gadget_get_string - fill out a string descriptor

SYNOPSIS

int usb_gadget_get_string (struct usb_gadget_strings * table, int id, u8 * buf);

ARGUMENTS

table: of c strings using iso latin/1 characters
id: string id, from low byte of wValue in get string descriptor
buf: at least 256 bytes

DESCRIPTION

Finds the iso latin/1 string matching the ID, and converts it into a string descriptor in utf16-le. Returns length of descriptor (always even) or negative errno

If your driver needs stings in multiple languages, you'll need to to use some alternate solution for languages where the ISO 8859/1 (latin/1) character set can't be used. For example, they can't be used with Chinese (Big5, GB2312, etc), Japanese, Korean, or many other languages. You'd likely ``switch (wIndex) { ... }'' in your ep0 string descriptor logic, using this routine in cases where ``western european'' characters suffice for the strings being returned.

ABOUT THIS DOCUMENT

This documentation was generated with kernel version 2.6.0.

This document was created by man2html, using the manual pages.
Time: 23:19:30 GMT, August 13, 2003