man pages section 9: DDI and DKI Kernel Functions

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Updated: July 2014



csx_Put8, csx_Put16, csx_Put32, csx_Put64 - write to device register


#include <sys/pccard.h>

void csx_Put8(acc_handle_t handle, uint32_t offset, uint8_t value);
void csx_Put16(acc_handle_t handle, uint32_t offset, uint16_t value);
void csx_Put32(acc_handle_t handle, uint32_t offset, uint32_t value);
void csx_Put64(acc_handle_t handle, uint32_t offset, uint64_t value);

Interface Level

Solaris DDI Specific (Solaris DDI)



The access handle returned from csx_RequestIO(9F), csx_RequestWindow(9F), or csx_DupHandle(9F).


The offset in bytes from the base of the mapped resource.


The data to be written to the device.


These functions generate a write of various sizes to the mapped memory or device register.

The csx_Put8(), csx_Put16(), csx_Put32(), and csx_Put64() functions write 8 bits, 16 bits, 32 bits, and 64 bits of data, respectively, to the device address represented by the handle, handle, at an offset in bytes represented by the offset, offset.

Data that consists of more than one byte 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 may be called from user, kernel, or interrupt context.

See also

csx_DupHandle(9F), csx_Get8(9F), csx_GetMappedAddr(9F), csx_RepGet8(9F), csx_RepPut8(9F), csx_RequestIO(9F), csx_RequestWindow(9F)

PC Card 95 Standard, PCMCIA/JEIDA