16: spidev_class = class_create(THIS_MODULE, "spidev"); 17: if (IS_ERR(spidev_class)) {18: unregister_chrdev(SPIDEV_MAJOR, spidev_spi_driver.driver.name);19: return PTR_ERR(spidev_class);20: }21: /* register匹配到device ,最终调用prob函数 */22: status = spi_register_driver(&...
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 ...
However, I still have a problem with the CS handling in thespidevdriver. This is my method (SPI interface is configured elsewhere) : IOBus_Error SPI::message(const unsigned char *txBuffer, unsigned char *rxBuffer, ssize_t &length, long flags) { ...
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 ...
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,
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)); ...
- AppleSPIDevice.sys 文件描述+ 为大写 / 为小写 APPLESPIDEVICE.SYS / applespidevice.sys + 安装路径 C:\Windows\system32\drivers\AppleSPIDevice.sys + 文件描述 Apple SPI Devcie Driver + 版本 5.1.12.0+ 产品名称 Apple SPI Devcie Driver ...
config CAIF_SPI_SLAVE tristate "CAIF SPI transport driver for slave interface" depends on CAIF && HAS_DMA default n help The CAIF Link layer SPI Protocol driver for Slave SPI interface. This driver implements a platform driver to accommodate for a ...
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
Java SPI 2020-01-05 10:59 −## 一、简介 `SPI`全称`Service Provider Interface`,它是JDK内置的一种可以动态发现服务的机制。通过这种方式,可以方便地将服务提供者与第三方实现客户端解耦。它主要包含三个基本组件:服务接口,提供者注册`API`以及服务访问`API`。 下面是[Wikipedia](... ...