spi-imx8lpspi

Runs on:

QNX OS

Options:

These are the options available for this driver.

-c config_file

Path to the SPI configuration file (default: /etc/system/config/spi/spi.conf)

SPI config file template can be found at lib/io-spi/config_files/spi-template.conf

-v

Increase verbosity. This overrides the "verbose" value in the configuration file.

Driver-specific options You set these options in the configuration file in the bus section using the bs parameter.

dma

Enable DMA transfer (disabled by default).

dbt=num

Delay between transfers. In terms of half SPI shift clock. (Default is 0.)

pcssck==num

Delay from the PCS assertion to the first SCK edge. In terms of half SPI shift clock. (Default is 0.)

sckpcs==num

Delay from the last SCK edge to the PCS negation. In terms of half SPI shift clock. (Default is 0.)

pincfg==num

Pin configuration.

• 0—(default) use SDI for input data and SDO for output data.
• 1—use SDI for both input and output data.
• 2—use SDO for both input and output data.
• 3—use SDO for input data and SDI for output data.

smmu=[ on | off | 1 | 0 ]

Turn on (1) or off (0; default) the use of local I/O MMU protection services.Use only with dma.

Description:

Driver for NXP i.MX8 Low Power SPI controllers

Example:

spi-imx8lpspi -c /etc/custom/spi.conf