CONFIG_EP_BY_SPEED(9) Kernel Mode Gadget API CONFIG_EP_BY_SPEED(9)NAMEconfig_ep_by_speed - configures the given endpoint according to gadget
speed.
SYNOPSIS
int config_ep_by_speed(struct usb_gadget * g, struct usb_function * f,
struct usb_ep * _ep);
ARGUMENTS
g
pointer to the gadget
f
usb function
_ep
the endpoint to configure
RETURN
error code, 0 on success
This function chooses the right descriptors for a given endpoint
according to gadget speed and saves it in the endpoint desc field. If
the endpoint already has a descriptor assigned to it - overwrites it
with currently corresponding descriptor. The endpoint maxpacket field
is updated according to the chosen descriptor.
NOTE
the supplied function should hold all the descriptors for supported
speeds
AUTHOR
David Brownell <dbrownell@users.sourceforge.net>
Author.
COPYRIGHTKernel Hackers Manual 3.8. June 2014 CONFIG_EP_BY_SPEED(9)