usbusx2yaudio.c File Reference

#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/usb.h>
#include <linux/moduleparam.h>
#include <sound/core.h>
#include <sound/info.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include "usx2y.h"
#include "usbusx2y.h"

Go to the source code of this file.

Data Structures
struct	s_c2

Macros
#define	USX2Y_NRPACKS
#define	USX2Y_NRPACKS_VARIABLE
#define	nr_of_packs()   nrpacks
#define	NOOF_SETRATE_URBS   ARRAY_SIZE(SetRate48000)

Functions
	module_param (nrpacks, int, 0444)
	MODULE_PARM_DESC (nrpacks,"Number of packets per URB.")
int	usX2Y_audio_create (struct snd_card *card)

Macro Definition Documentation

#define NOOF_SETRATE_URBS   ARRAY_SIZE(SetRate48000)

Definition at line 647 of file usbusx2yaudio.c.

#define nr_of_packs

(

)

nrpacks

Definition at line 50 of file usbusx2yaudio.c.

#define USX2Y_NRPACKS

Value:

4           /* Default value used for nr of packs per urb.
                      1 to 4 have been tested ok on uhci.
                      To use 3 on ohci, you'd need a patch:
                      look for "0000425-linux-2.6.9-rc4-mm1_ohci-hcd.patch.gz" on
                      "https://bugtrack.alsa-project.org/alsa-bug/bug_view_page.php?bug_id=0000425"
                      .
                      1, 2 and 4 work out of the box on ohci, if I recall correctly.
                      Bigger is safer operation,
                      smaller gives lower latencies.
                    */

Definition at line 45 of file usbusx2yaudio.c.

#define USX2Y_NRPACKS_VARIABLE

Value:

y   /* If your system works ok with this module's parameter
                       nrpacks set to 1, you might as well comment 
                       this #define out, and thereby produce smaller, faster code.
                       You'd also set USX2Y_NRPACKS to 1 then.
                    */

Definition at line 46 of file usbusx2yaudio.c.

Function Documentation

module_param	(	nrpacks	,
		int	,
		0444
	)

MODULE_PARM_DESC	(	nrpacks	,
		"Number of packets per URB."
	)

int usX2Y_audio_create

(

struct snd_card *

card

)

Definition at line 1001 of file usbusx2yaudio.c.