usb_gstrings_attach (9) - Linux Man Pages
usb_gstrings_attach: attach gadget strings to a cdev and assign ids
usb_gstrings_attach - attach gadget strings to a cdev and assign ids
struct usb_string * usb_gstrings_attach(struct usb_composite_dev
*cdev, struct usb_gadget_strings **sp, unsigned n_strings);
- the device whose string descriptor IDs are being allocated and attached.
- an array of usb_gadget_strings to attach.
- number of entries in each usb_strings array (sp->strings)
This function will create a deep copy of usb_gadget_strings and usb_string and attach it to the cdev. The actual string (usb_string.s) will not be copied but only a referenced will be made. The struct usb_gadget_strings array may contain multiple languages and should be NULL terminated. The ->language pointer of each struct usb_gadget_strings has to contain the same amount of entries. For instance: sp is en-US, sp is es-ES. It is expected that the first usb_string entry of es-ES contains the translation of the first usb_string entry of en-US. Therefore both entries become the same id assign.
David Brownell <dbrownell [at] users.sourceforge.net>