other versions
USB_EP_ALIGN_MAYBE(9) | Kernel Mode Gadget API | USB_EP_ALIGN_MAYBE(9) |
NAME¶
usb_ep_align_maybe - returns len aligned to ep's maxpacketsize if gadget requires quirk_ep_out_aligned_size, otherwise returns len.
SYNOPSIS¶
size_t usb_ep_align_maybe(struct usb_gadget * g, struct usb_ep * ep, size_t len);
ARGUMENTS¶
struct usb_gadget * g
controller to check for quirk
struct usb_ep * ep
the endpoint whose maxpacketsize is used to align
len
size_t len
buffer size's length to align to ep's
maxpacketsize
DESCRIPTION¶
This helper is used in case it's required for any reason to check and maybe align buffer's size to an ep's maxpacketsize.
AUTHOR¶
David Brownell <dbrownell@users.sourceforge.net>
Author.
COPYRIGHT¶
June 2017 | Kernel Hackers Manual 4.11 |