| USB_DESCRIPTOR_FILLB(9) | Kernel Mode Gadget API | USB_DESCRIPTOR_FILLB(9) |
NAME¶
usb_descriptor_fillbuf - fill buffer with descriptors
SYNOPSIS¶
int usb_descriptor_fillbuf(void * buf, unsigned buflen, const struct usb_descriptor_header ** src);
ARGUMENTS¶
buf
Buffer to be filled
buflen
Size of buf
src
Array of descriptor pointers, terminated by null
pointer.
DESCRIPTION¶
Copies descriptors into the buffer, returning the length or a negative error code if they can´t all be copied. Useful when assembling descriptors for an associated set of interfaces used as part of configuring a composite device; or in other cases where sets of descriptors need to be marshaled.
AUTHOR¶
David Brownell <dbrownell@users.sourceforge.net>
Author.
COPYRIGHT¶
| May 2024 | Kernel Hackers Manual 2.6. |