osal_drvbox

函数
unsigned int	osal_drvmgr_switch_to_drvbox (unsigned int drv_id)
	Switch region from usr box to driver box.
void	osal_drvmgr_switch_to_usrbox (void)
	Switch region from driver box to usr box.

详细描述

函数说明

osal_drvmgr_switch_to_drvbox()

unsigned int osal_drvmgr_switch_to_drvbox

(

unsigned int

drv_id

)

Switch region from usr box to driver box.

Description:

This API is used to switch executing region from usr box to driver box, and change pmp/mpu configuration respectivly.

注意

This api can only be invoked in common usr lib.

参数

drv_id

[in] used to check the invoking permission of the driver.

返回值

DRV_BOX_INVALID_SWITCH	No need to do the switching process due to the limitation.
DRV_BOX_SWITCH_FAIL	Permission rejected.
LOS_OK	Box region switching success.

Support System:

seliteos.

osal_drvmgr_switch_to_usrbox()

void osal_drvmgr_switch_to_usrbox

(

void

)

Switch region from driver box to usr box.

Description:

This API is used to switch box running region from driver box to usr box, and change pmp/mpu configuration respectivly.

注意

This api can only be invoked in common usr lib space.

Support System:

seliteos.