Web*PATCH 0/4] Add support for charger LED for AXP813 and TBS A711 Tablet @ 2024-02-23 13:14 Ondrej Jirman 2024-02-23 13:14 ` [PATCH 1/4] dt-bindings: leds: Add a binding for AXP813 charger led Ondrej Jirman ` (4 more replies) 0 siblings, 5 replies; 14+ messages in thread From: Ondrej Jirman @ 2024-02-23 13:14 UTC (permalink / raw) To: linux-sunxi, … Web20 apr. 2013 · 模块的实现机制: 对于每一个内核模块来说，必定包含两个函数：卸载函数和初始化函数. 1、将模块插入到内核时的初始化工作. 1）准备struct file_operations结构体；. 2）使用register_chrdev_region注册，申请设备号；. 3）使用cdev_init初始化struct cdev结构体，建立cdev和file ...
linux ---------驱动开发遇到的问题及解决方法 - CSDN博客
Webstruct led_classdev *led_cdev = dev_get_drvdata (dev); struct lm3530_data *drvdata; int i, len = 0; drvdata = container_of (led_cdev, struct lm3530_data, led_dev); for (i = 0; i < … Web29 jun. 2016 · 0 The better solution I could find is to create a separated struct where you will put the members that must be memsetted to zero. Not sure if this design is suitable for you. This struct got no vtable and extends nothings. It will be just a chunk of data. This way memsetting the struct is safe. I have made an example: north bend bank of america
第一个Linux驱动-流水灯_iteye_21199的博客-CSDN博客
Web在该例程中，由于控制LED亮灭的部分放在了定时器处理函数中，因此led_read函数没有实际作用，这样的话应用程序就简单一些；另一种选择是将该控制部分放在应用程序中完成，不过还得添加一个iocntl函数，这是我之前的做法。 Web30 sep. 2024 · memset (p, 0, sizeof (p)); you are setting to 0 only a part of object of the structure that is equal to the size of the pointer p. Instead you need to write memset (p, 0, sizeof (*p)); that is to set the whole object of the structure type with 0. Pay attention to as the variable p is a pointer then this record p.name = "TOYOTA"; Web[PATCH v3] leds: lp8860: Introduce TI lp8860 4 channel LED driver Dan Murphy Wed, 19 Nov 2014 04:50:11 -0800 Introduce the Texas Instruments lp8860 4 channel LED driver. north bend bc real estate listings