SPI_REGISTER_BOARD_I(9) Serial Peripheral Interface (S SPI_REGISTER_BOARD_I(9)
NAME
spi_register_board_info - register SPI devices for a given board
SYNOPSIS
int spi_register_board_info(struct spi_board_info const * info, unsigned n);
ARGUMENTS
info
array of chip descriptors
n
how many descriptors are provided
CONTEXT
can sleep
DESCRIPTION
Board-specific early init code calls this (probably during arch_initcall) with segments of the SPI device table. Any device nodes are
created later, after the relevant parent SPI controller (bus_num) is defined. We keep this table of devices forever, so that reloading a
controller driver will not make Linux forget about these hard-wired devices.
Other code can also call this, e.g. a particular add-on board might provide SPI devices through its expansion connector, so code
initializing that board would naturally declare its SPI devices.
The board info passed can safely be __initdata ... but be careful of any embedded pointers (platform_data, etc), they're copied as-is.
COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 SPI_REGISTER_BOARD_I(9)
