| CONFIG_EP_BY_SPEED(9) | Kernel Mode Gadget API | CONFIG_EP_BY_SPEED(9) |
NAME¶
config_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.
COPYRIGHT¶
| June 2024 | Kernel Hackers Manual 3.10 |