03 2016 档案

linux驱动中printk的使用注意事项
摘要：今天在按键驱动中增加printk(KERN_INFO "gpio_keys_gpio_isr()\n");在驱动加载阶段可以输出调试信息，但驱动加载起来后的信息，在串口端看不到输出信息 在kernel/ /* We show everything that is MORE important tha 阅读全文
posted @ 2016-03-19 16:52 LoongEmbedded 阅读(1502) 评论(0) 推荐(0)
linux开发摘要
摘要：1.linux内核文档链接点击打开链接 2.配置文件 在out\target\product\project\obj\KERNEL_OBJ\.config中可以看到 [plain] view plain copy # CONFIG_MTD_LPDDR is not set # CONFIG_MTD_ 阅读全文
posted @ 2016-03-02 10:35 LoongEmbedded 阅读(1142) 评论(0) 推荐(0)
Linux and the Device Tree
摘要：来之\kernel\Documentation\devicetree\usage-model.txtLinux and the Device Tree-------------------------The Linux usage model for device tree dataAuthor:... 阅读全文
posted @ 2016-03-02 09:23 LoongEmbedded 阅读(361) 评论(0) 推荐(0)
linux开发缩写
摘要：1.CONFIG_OF在一些驱动中经常看到#ifdef CONFIG_OF，这里的OF是Open Firmware。Open Firmware. This was invented long time ago when Apple was producing laptops based on Po... 阅读全文
posted @ 2016-03-02 09:20 LoongEmbedded 阅读(309) 评论(0) 推荐(0)
高通android开发缩写
摘要：1.TLMMMSM TLMM pinmux controller，Qualcomm MSM integrates a GPIO and Pin mux/config hardware, (TOP Level Mode Multiplexer in short TLMM). It controls ... 阅读全文
posted @ 2016-03-02 08:49 LoongEmbedded 阅读(650) 评论(0) 推荐(0)