LDI_STRATEGY(9F) Kernel Functions for Drivers LDI_STRATEGY(9F)

NAME

ldi_strategy - Device strategy request

SYNOPSIS

#include <sys/sunldi.h>

int ldi_strategy(ldi_handle_t lh, struct buf *bp);

PARAMETERS

lh
Layered handle.


bp
Pointer to the buf(9S) structure.

DESCRIPTION

The ldi_strategy() function passes a strategy request to the device entry
point for the device specified by the layered handle. This operation is
supported for block devices.

RETURN VALUES

The ldi_strategy() function returns 0 if the strategy request has been
passed on to the target device. Other possible return values are:

EINVAL
Invalid input parameters.


ENOTSUP
Operation is not supported for this device.


Once the request has been passed on to the target devices strategy entry
point, any further errors will be reported by bioerror(9F) and
biodone(9F). See the strategy(9E) entry point for more information.

CONTEXT

This function may be called from user or kernel context.


June 3, 2003 LDI_STRATEGY(9F)