table of contents
| USB_FILL_INT_URB(9) | Host-Side Data Types and Macro | USB_FILL_INT_URB(9) |
NAME¶
usb_fill_int_urb - macro to help initialize a interrupt urb
SYNOPSIS¶
void usb_fill_int_urb(struct urb * urb, struct usb_device * dev, unsigned int pipe, void * transfer_buffer, int buffer_length, usb_complete_t complete_fn, void * context, int interval);
ARGUMENTS¶
urb
pointer to the urb to initialize.
dev
pointer to the struct usb_device for this urb.
pipe
the endpoint pipe
transfer_buffer
pointer to the transfer buffer
buffer_length
length of the transfer buffer
complete_fn
pointer to the usb_complete_t function
context
what to set the urb context to.
interval
what to set the urb interval to, encoded like the
endpoint descriptor´s bInterval value.
DESCRIPTION¶
Initializes a interrupt urb with the proper information needed to submit it to a device. Note that high speed interrupt endpoints use a logarithmic encoding of the endpoint interval, and express polling intervals in microframes (eight per millisecond) rather than in frames (one per millisecond).
COPYRIGHT¶
| May 2024 | Kernel Hackers Manual 2.6. |