NAME

ddi_put8, ddi_put16, ddi_put32, ddi_put64, - write data to the mapped memory address, device register or allocated DMA memory address

SYNOPSIS

#include <sys/ddi.h>
#include <sys/sunddi.h>
void ddi_put8(ddi_acc_handle_t handle, uint8_t *dev_addr,


     uint8_t value);

void ddi_put16(ddi_acc_handle_t handle, uint16_t *dev_addr,


     uint16_t value);

void ddi_put32(ddi_acc_handle_t handle, uint32_t *dev_addr,


     uint32_t value);

void ddi_put64(ddi_acc_handle_t handle, uint64_t *dev_addr,


     uint64_t value);

INTERFACE LEVEL

illumos DDI specific (illumos DDI). The ddi_putb(), ddi_putl(), ddi_putll(), and ddi_putw() functions are obsolete. The ddi_put8() function replaces ddi_putb(). The ddi_put32() function replaces ddi_putl(). The ddi_put64() function replaces ddi_putll(). The ddi_put16() function replaces ddi_putw().

PARAMETERS

handle

value

dev_addr

DESCRIPTION

These routines generate a write of various sizes to the mapped memory or device register. The ddi_put8(), ddi_put16(), ddi_put32(), and ddi_put64() functions write 8 bits, 16 bits, 32 bits and 64 bits of data, respectively, to the device address, dev_addr.

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 characteristics.

These DDI functions can be called from a high-interrupt context for the ISA bus and, under certain conditions, for the PCI bus. See sysbus(5), isa(5) and pci(5) for details.

CONTEXT

These functions can be called from user, kernel, or interrupt context.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:

SEE ALSO

ddi_get8(9F), ddi_regs_map_free(9F), ddi_regs_map_setup(9F), ddi_rep_get8(9F), ddi_rep_put8(9F), ddi_device_acc_attr(9S)