snd_interval_refine(9) [centos man page]

SND_INTERVAL_REFINE(9)						      PCM API						    SND_INTERVAL_REFINE(9)

NAME

       snd_interval_refine - refine the interval value of configurator

SYNOPSIS

       int snd_interval_refine(struct snd_interval * i, const struct snd_interval * v);

ARGUMENTS

       i
	   the interval value to refine

       v
	   the interval value to refer to

DESCRIPTION

       Refines the interval value with the reference value. The interval is changed to the range satisfying both intervals. The interval status
       (min, max, integer, etc.) are evaluated.

RETURN

       Positive if the value is changed, zero if it's not changed, or a negative error code.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						    SND_INTERVAL_REFINE(9)

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 and SuperSpeed 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).

       Wireless USB also uses the logarithmic encoding, but specifies it in units of 128us instead of 125us. For Wireless USB devices, the
       interval is passed through to the host controller, rather than being translated into microframe units.

COPYRIGHT

Kernel Hackers Manual 2.6.					     July 2010						       USB_FILL_INT_URB(9)