ldi_ident_from_dev(9F) Kernel Functions for Drivers ldi_ident_from_dev(9F)NAME
ldi_ident_from_dev, ldi_ident_from_stream, ldi_ident_from_dip,
ldi_ident_release - ldi cookie management
SYNOPSIS
#include <sys/sunldi.h>
int ldi_ident_from_dip(dev_info_t *dip, ldi_ident_t *lip);
int ldi_ident_from_dev(dev_t dev, ldi_ident_t *lip);
int ldi_ident_from_stream(struct queue *sq, ldi_ident_t *lip);
void ldi_ident_release(ldi_ident_t li);
PARAMETERS
li ldi identifier
lip ldi identifier pointer
dip pointer to device info node
dev device number
sq pointer to a stream queue
DESCRIPTION
The ldi_ident_from_dev() function allocates and returns an ldi identi‐
fier that is associated with the device number specified by dev. The
new ldi identifier is returned in the ldi identifier pointer parameter
lip.
The ldi_ident_from_dip() function allocates and returns an ldi identi‐
fier that is associated with the device info node pointed to by dip.
The new ldi identifier is returned in the ldi identifier pointer
parameter lip.
The ldi_ident_from_stream() function allocates and returns an ldi iden‐
tifier that is associated with the stream pointed to by queue. The new
ldi identifier is returned in the ldi identifier pointer parameter lip.
The ldi_ident_release() function releases an identifier that was allo‐
cated by one of the ldi_ident_from_*() functions.
RETURN VALUES
The ldi_ident_from_dev(), ldi_ident_from_dip(), and
ldi_ident_from_stream() functions return 0 upon success.
All of these functions return EINVAL for invalid input parameters.
CONTEXT
These functions can be called from user or kernel context.
SunOS 5.11 26 Mar 2009 ldi_ident_from_dev(9F)