ddi_mem_put8(9F) Kernel Functions for Drivers ddi_mem_put8(9F)NAME
ddi_mem_put8, ddi_mem_put16, ddi_mem_put32, ddi_mem_put64,
ddi_mem_putb, ddi_mem_putw, ddi_mem_putl, ddi_mem_putll - write data to
mapped device in the memory space or allocated DMA memory
SYNOPSIS
#include <sys/ddi.h>
#include <sys/sunddi.h>
void ddi_mem_put8(ddi_acc_handle_t handle, uint8_t *dev_addr, uint8_t
value);
void ddi_mem_put16(ddi_acc_handle_t handle, uint16_t *dev_addr,
uint16_t value);
void ddi_mem_put32(ddi_acc_handle_t handle, uint32_t *dev_addr,
uint32_t value);
void ddi_mem_put64(ddi_acc_handle_t handle, uint64_t *dev_addr,
uint64_t value);
PARAMETERS
handle The data access handle returned from setup calls, such
as ddi_regs_map_setup(9F).
dev_addr Base device address.
value The data to be written to the device.
INTERFACE LEVEL
Solaris DDI specific (Solaris DDI).
DESCRIPTION
These routines generate a write of various sizes to memory space or
allocated DMA memory. The ddi_mem_put8(), ddi_mem_put16(),
ddi_mem_put32(), and ddi_mem_put64() functions write 8 bits, 16 bits,
32 bits and 64 bits of data, respectively, to the device address,
dev_addr, in memory space.
Each individual datum will automatically be translated to maintain a
consistent view between the host and the device based on the encoded
information in the data access handle. The translation may involve
byte-swapping if the host and the device have incompatible endian char‐
acteristics.
CONTEXT
These functions can be called from user, kernel, or interrupt context.
SEE ALSOddi_mem_get8(9F), ddi_mem_rep_get8(9F), ddi_regs_map_setup(9F),
ddi_device_acc_attr(9S)NOTES
The functions described in this manual page previously used symbolic
names which specified their data access size; the function names have
been changed so they now specify a fixed-width data size. See the fol‐
lowing table for the new name equivalents:
┌───────────────────────────────────────────────────────────┐
│Previous Name New Name │
│ddi_mem_putb ddi_mem_put8 │
│ddi_mem_putw ddi_mem_put16 │
│ddi_mem_putl ddi_mem_put32 │
│ddi_mem_putll ddi_mem_put64 │
└───────────────────────────────────────────────────────────┘
SunOS 5.10 28 Sep 1996 ddi_mem_put8(9F)