Teesl_udf

Functions
int	TEES_UDF_InitDriver (char *name, struct fops *fops, unsigned int drvid, struct usr_drv_info **info)
	This function is used to initialize and register UDF driver. More...
int	TEES_UDF_Init_FS_Driver (char *name, struct fops *fops, unsigned int drvid, struct usr_drv_info **info)
	This function is used to initialize and register UDF FS driver. More...
int	TEES_UDF_FiniDriver (struct usr_drv_info *info)
	This function is used to de-initialize and stop UDF driver. More...
int	TEES_UDF_RegisterIoctlDesc (struct usr_drv_info *info, unsigned int cmd, const struct ioctl_desc *desc)
	Register an ioctl() cmd for UDF driver. More...

Detailed Description

Function Documentation

int TEES_UDF_FiniDriver

(

struct usr_drv_info *

info

)

#include <udf.h>

This function is used to de-initialize and stop UDF driver.

Parameters

[in]

info

driver handle.

Return values

0	on success.
-1	on fail and errno is set.

int TEES_UDF_Init_FS_Driver	(	char *	name,
		struct fops *	fops,
		unsigned int	drvid,
		struct usr_drv_info **	info
	)

#include <udf.h>

This function is used to initialize and register UDF FS driver.

Parameters

[in]	name	name.
[in]	fops	file operations.
[in]	drvid	id.
[in]	info	driver handle.

Return values

0	on success.
-1	on fail and errno is set.

int TEES_UDF_InitDriver	(	char *	name,
		struct fops *	fops,
		unsigned int	drvid,
		struct usr_drv_info **	info
	)

#include <udf.h>

This function is used to initialize and register UDF driver.

Parameters

[in]	name	name.
[in]	fops	file operations.
[in]	drvid	id.
[in]	info	driver handle.

Return values

0	on success.
-1	on fail and errno is set.

int TEES_UDF_RegisterIoctlDesc	(	struct usr_drv_info *	info,
		unsigned int	cmd,
		const struct ioctl_desc *	desc
	)

#include <udf.h>

Register an ioctl() cmd for UDF driver.

Parameters

[in]	info	A pointer to struct usr_drv_info that contains information describing the driver.
[in]	cmd	An ioctl() command being added.
[in]	desc	An ioctl() arguments descriptor, see below for details.

Return values

0	on success, -1 otherwise. errno variable is set appropriately.

Example:

struct example { uint32_t a; char *b; uint32_t items_cnt; uint32_t items[]; };

struct example data = { .a = 0xa5a5a5a5, .b = "0123456789", .items_cnt = 3, .items = {0, 1, 2}, };

struct ioctl_desc example_desc = { .cnt = 5, .tpl = { {.type = DESC_ATOM_VAL, .len = sizeof(uint32_t) }, {.type = DESC_ATOM_REF, .len = 10 }, {.type = DESC_ATOM_ARR_CNT_0, .len = sizeof(uint32_t) }, {.type = DESC_ATOM_ARR_ITEM_0, .len = 1 }, {.type = DESC_ATOM_VAL, .len = sizeof(uint32_t) }, }, };

ret = TEES_UDF_RegisterIoctlDesc(my_driver_info, EXAMPLE_IOCTL_ID, &example_desc);
if (ret) {
     printf("udf register ioctl() desc failed, ret = %d\n", ret);
}