3) spi_register_driver 注册spi driver。 二:spidev_probe 函数 1:staticint__devinit spidev_probe(structspi_device *spi) 2:{ 3:structspidev_data *spidev; 4:intstatus; 5:unsignedlongminor; 6: 7:/* Allocate driver data */ 8:spidev = kzalloc(sizeof(*spidev), GFP_KERNEL); 9:if(!
I have now a clean SPI bring-up via the SPIDEV (spidev_test) API with 2 chipselects, one for each device (spidev2.0 and spidev2.1). The driver shows a much healthier log: dmesg | grep spi [ 8.853067] spi_imx 2010000.spi: chipselect 0 already in use [ 8...
xxg 标签: SPI testing utility,spidev driver,Linux spi 1 /* 2 * SPI testing utility (using spidev driver) 3 * 4 * Copyright (c) 2007 MontaVista Software,
Hello everyone! I am trying to figure out how SPI drivers for Bosch bme280 sensor work... I would like to somehow recycle them to write my own SPI drivers for
Modular ASIC/FPGA miner written in C, featuring overclocking, monitoring, fan speed control and remote interface capabilities. - Bugfix: Turn spidevc into lowl-spi to fix building the knc driver wit… · QPC-github/bfgminer@09f9961
High-speed Adalight USB serial LED driver implementation for Raspberry Pi Pico RP2040. Support for sk6812/ws2812b/apa102 and others using Rpi multi-core, DMA, PIO, SPI and parallel output. - awawa-dev/HyperSerialPico
I have now a clean SPI bring-up via the SPIDEV (spidev_test) API with 2 chipselects, one for each device (spidev2.0 and spidev2.1). The driver shows a much healthier log: dmesg | grep spi [ 8.853067] spi_imx 2010000.spi: chipselect 0 already in use [ 8....
The driver shows a much healthier log: dmesg | grep spi [8.853067] spi_imx 2010000.spi: chipselect 0 already in use [8.921498] spi_master spi2: spi_device register error /soc/aips-bus@2000000/spba-bus@2000000/spi@2010000/spidev@0 ...
static struct of_platform_driver spidev_spi = { .name = "spidev", .match_table = spidev_match, .probe = spidev_probe, .remove = __devexit_p(spidev_remove), }; spidev_probe() now looks like the below. I've had to change the spidev_probe() function signature, which meant I ...
of my SPI Controller driver. However in this case spidev_probe() failed because its call to device_create_drvdata() failed with error code ENODEV. Why would this be? This is how I make the call from my SPI Controller driver: spidev_probe(to_spi_device(&ofdev->dev)); ...