dma.c File Reference

#include <linux/export.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/spinlock.h>
#include <linux/string.h>
#include <linux/seq_file.h>
#include <linux/proc_fs.h>
#include <linux/init.h>
#include <asm/dma.h>

Go to the source code of this file.

Functions
	DEFINE_SPINLOCK (dma_spin_lock)
int	request_dma (unsigned int dmanr, const char *device_id)
void	free_dma (unsigned int dmanr)
	EXPORT_SYMBOL (request_dma)
	EXPORT_SYMBOL (free_dma)
	EXPORT_SYMBOL (dma_spin_lock)

Function Documentation

DEFINE_SPINLOCK

(

dma_spin_lock

)

EXPORT_SYMBOL

(

request_dma

)

EXPORT_SYMBOL

(

free_dma

)

EXPORT_SYMBOL

(

dma_spin_lock

)

void free_dma

(

unsigned int

dmanr

)

Definition at line 108 of file dma.c.

int request_dma	(	unsigned int	dmanr,
		const char *	device_id
	)

request_dma - request a DMA channel

Request the specific DMA channel from the system if it's available.

Definition at line 103 of file dma.c.