spi_register_master(9) [centos man page]

SPI_REGISTER_MASTER(9)					  Serial Peripheral Interface (S				    SPI_REGISTER_MASTER(9)

NAME

       spi_register_master - register SPI master controller

SYNOPSIS

       int spi_register_master(struct spi_master * master);

ARGUMENTS

       master
	   initialized master, originally from spi_alloc_master

CONTEXT

       can sleep

DESCRIPTION

       SPI master controllers connect to their drivers using some non-SPI bus, such as the platform bus. The final stage of probe in that code
       includes calling spi_register_master to hook up to this SPI bus glue.

       SPI controllers use board specific (often SOC specific) bus numbers, and board-specific addressing for SPI devices combines those numbers
       with chip select numbers. Since SPI does not directly support dynamic device identification, boards need configuration tables telling which
       chip is at which address.

       This must be called from context that can sleep. It returns zero on success, else a negative error code (dropping the master's refcount).
       After a successful return, the caller is responsible for calling spi_unregister_master.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						    SPI_REGISTER_MASTER(9)

SPI(4)							   BSD Kernel Interfaces Manual 						    SPI(4)

NAME

     spi -- introduction to machine-independent SPI bus support and drivers

SYNOPSIS

     spi* at mainbus?

     Other attachments are machine-dependent and will depend on the bus topology of your system.  See intro(4) for your system for more informa-
     tion.

DESCRIPTION

     NetBSD includes a machine dependent SPI (Serial Peripheral Interface) bus subsystem, and several different machine-independent SPI device
     drivers.

     Your system may support additional machine-dependent SPI devices.	Consult your system's intro(4) for additional information.

     SPI is a 4-wire synchronous full-duplex serial bus.  Some systems provide support for Microwire, which is Philips' name for a strict subset
     of SPI, with more rigidly defined signaling.  Therefore, Microwire devices are also supported by the SPI framework.

     Note that when referencing SPI devices in a config(1) file, the 'slave' must be provided, as SPI lacks any way to automatically probe
     devices.

HARDWARE

     NetBSD includes the following machine-independent SPI drivers

	   m25p       STMicroelectronics M25P family of NOR flash devices.

	   tm121temp  Texas Instruments TMP121 temperature sensor.

SEE ALSO

     m25p(4), tm121temp(4)

HISTORY

     The machine-independent SPI framework was written by Garrett D'Amore for the Champaign-Urbana Community Wireless Network Project (CUWiN), and
     appeared in NetBSD 4.0.

BSD
								  October 9, 2006							       BSD