module Spi

Defined in:

spi.cr

Constant Summary

IOC_MAGIC = 'k'

IOC_RD_BITS_PER_WORD = IOCTL._IOR(IOC_MAGIC, 3, sizeof(UInt8))

IOC_RD_LSB_FIRST = IOCTL._IOR(IOC_MAGIC, 2, sizeof(UInt8))

IOC_RD_MAX_SPEED_HZ = IOCTL._IOR(IOC_MAGIC, 4, sizeof(UInt32))

IOC_RD_MODE = IOCTL._IOR(IOC_MAGIC, 1, sizeof(UInt8))

IOC_RD_MODE32 = IOCTL._IOR(IOC_MAGIC, 5, sizeof(UInt32))

IOC_WR_BITS_PER_WORD = IOCTL._IOW(IOC_MAGIC, 3, sizeof(UInt8))

IOC_WR_LSB_FIRST = IOCTL._IOW(IOC_MAGIC, 2, sizeof(UInt8))

IOC_WR_MAX_SPEED_HZ = IOCTL._IOW(IOC_MAGIC, 4, sizeof(UInt32))

IOC_WR_MODE = IOCTL._IOW(IOC_MAGIC, 1, sizeof(UInt8))

IOC_WR_MODE32 = IOCTL._IOW(IOC_MAGIC, 5, sizeof(UInt32))

MODE_USER_MASK = (1_u64 << 17) - 1

VERSION = {{ (`shards version /srv/crystaldoc.info/github-SleepingInsomniac-Spi-master/src`).chomp.stringify }}

Class Method Summary

• .ioc_message(n)
• .message_size(n)

Class Method Detail