1. 根目录:
2. sound
3. oss
4. os.h

#define ALLOW_SELECT
#undef NO_INLINE_ASM
#define SHORT_BANNERS
#define MANUAL_PNP
#undef  DO_TIMINGS

#include <linux/module.h>

#ifdef __KERNEL__
#include <linux/string.h>
#include <linux/fs.h>
#include <asm/dma.h>
#include <asm/io.h>
#include <asm/param.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/ioport.h>
#include <asm/page.h>
#include <linux/vmalloc.h>
#include <asm/uaccess.h>
#include <linux/poll.h>
#include <linux/pci.h>
#endif

#include <linux/soundcard.h>

#define FALSE	0
#define TRUE	1

extern int sound_alloc_dma(int chn, char *deviceID);
extern int sound_open_dma(int chn, char *deviceID);
extern void sound_free_dma(int chn);
extern void sound_close_dma(int chn);

extern void reprogram_timer(void);

#define USE_AUTOINIT_DMA

extern void *sound_mem_blocks[1024];
extern int sound_nblocks;

#undef PSEUDO_DMA_AUTOINIT
#define ALLOW_BUFFER_MAPPING

extern const struct file_operations oss_sound_fops;