Differential D4713 Diff 15303 head/lib/libstand/stand.h

Changeset View

Standalone View

head/lib/libstand/stand.h

	Show First 20 Lines • Show All 132 Lines • ▼ Show 20 Lines

	/*			/*
	* Device switch			* Device switch
	*/			*/
	struct devsw {			struct devsw {
	const char dv_name[8];			const char dv_name[8];
	int dv_type; /* opaque type constant, arch-dependant */			int dv_type; /* opaque type constant, arch-dependant */
	int (dv_init)(void); / early probe call */			int (dv_init)(void); / early probe call */
	int (dv_strategy)(void devdata, int rw, daddr_t blk, size_t size,			int (dv_strategy)(void devdata, int rw, daddr_t blk,
	char buf, size_t rsize);			size_t offset, size_t size, char buf, size_t rsize);
	int (dv_open)(struct open_file f, ...);			int (dv_open)(struct open_file f, ...);
	int (dv_close)(struct open_file f);			int (dv_close)(struct open_file f);
	int (dv_ioctl)(struct open_file f, u_long cmd, void *data);			int (dv_ioctl)(struct open_file f, u_long cmd, void *data);
	void (dv_print)(int verbose); / print device information */			void (dv_print)(int verbose); / print device information */
	void (*dv_cleanup)(void);			void (*dv_cleanup)(void);
	};			};

	/*			/*
	* libstand-supplied device switch			* libstand-supplied device switch
	*/			*/
	extern struct devsw netdev;			extern struct devsw netdev;

	extern int errno;			extern int errno;

				/*
				* Generic device specifier; architecture-dependent
				* versions may be larger, but should be allowed to
				* overlap.
				*/
				struct devdesc
				{
				struct devsw *d_dev;
				int d_type;
				#define DEVT_NONE 0
				#define DEVT_DISK 1
				#define DEVT_NET 2
				#define DEVT_CD 3
				#define DEVT_ZFS 4
				int d_unit;
				void *d_opendata;
				};

	struct open_file {			struct open_file {
	int f_flags; /* see F_* below */			int f_flags; /* see F_* below */
	struct devsw f_dev; / pointer to device operations */			struct devsw f_dev; / pointer to device operations */
	void f_devdata; / device specific data */			void f_devdata; / device specific data */
	struct fs_ops f_ops; / pointer to file system operations */			struct fs_ops f_ops; / pointer to file system operations */
	void f_fsdata; / file system specific data */			void f_fsdata; / file system specific data */
	off_t f_offset; /* current file offset */			off_t f_offset; /* current file offset */
	▲ Show 20 Lines • Show All 240 Lines • Show Last 20 Lines