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ddi_io_get8, ddi_io_get16, ddi_io_get32, ddi_io_getb, ddi_io_getl, ddi_io_getw - read data from the mapped device register in I/O space

#include <sys/ddi.h>
#include <sys/sunddi.h>



uint8_t ddi_io_get8(ddi_acc_handle_t handle, uint8_t *dev_addr);

uint16_t ddi_io_get16(ddi_acc_handle_t handle, uint16_t *dev_addr);

uint32_t ddi_io_get32(ddi_acc_handle_t handle, uint32_t *dev_addr);

Solaris DDI specific (Solaris DDI). The ddi_io_get8(), ddi_io_get16(), ddi_io_get32(), ddi_io_getb(), ddi_io_getl(), and ddi_io_getw() functions are obsolete. The ddi_get8(9F) function replaces ddi_io_get8(). The ddi_get16(9F) function replaces ddi_io_get16(). The ddi_get32(9F) function replaces ddi_io_get32(). The ddi_get8(9F) function replaces ddi_io_getb(). The ddi_get32(9F) function replaces ddi_io_getl(). The ddi_get16(9F) function replaces ddi_io_getw().

handle dev_addr

These routines generate a read of various sizes from the device address, dev_addr, in I/O space. The ddi_io_get8(), ddi_io_get16(), and ddi_io_get32() functions read 8 bits, 16 bits, and 32 bits of data, respectively, from 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 functions can be called from user, kernel, or interrupt context.

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE ATTRIBUTE VALUE

Interface Stability Obsolete

isa(4), ddi_get8(9F), ddi_get16(9F), ddi_get32(9F), ddi_io_put8(9F), ddi_io_rep_get8(9F), ddi_io_rep_put8(9F), ddi_regs_map_free(9F), ddi_regs_map_setup(9F), ddi_device_acc_attr(9S)