本文我们要讲的是如何通过 GPIO 驱动配置实现控制 i.MX8 芯片引脚电平变化。 硬件平台： i.MX8QMMEK EVM Board. 软件环境： i.MX-P9.0.0_2.1.0-AUTO-GA. 我们这里使用的是通过 DTS 文件来进行设备硬件资源的申请及分配，用户可以在 fsl-imx8qm-mek.dtsi 文件下操作 DTS，文件所在目录：kernel_imx\arch\arm64\boot\dts\freescale，定义 myled节点 设备如下： compatible = "fsl,myled"; . pinctrl-names = "default"; . pinctrl-0 = <&pinctrl_gpio_keys>; . }; .

2013年9月3日 · Fstrim is one mechanism of linux filesystem which derives from TRIM. TRIM is already introduced since linux2.6.33. It is the name of a command that the operating system can send to tell the SSD which blocks are free in the filesystem.The SSD uses this information to internally defragment the blocks and keep free pages available to be written ...

2023年9月25日 · We've built the imx-image-core to test out the LVDS, but at the start-up we get the following log: [FAILED] Failed to start Weston, a …mpositor, as a system service. See 'systemctl status weston.service' for details.

2021年6月29日 · imx8：imx8是nxp半导体公司推出的一款高性能多核应用处理器系列，具备强大的多媒体处理能力和丰富的外设支持，常用于嵌入式系统开发。 3. 3. OTG（On-The-Go）：是USB技术的一种补充，使得设备之间可以不用电脑就能...

2022年10月21日 · You can trim down the device tree a fair bit if needed. Once you have worked out what can go, create some device tree patch file(s) and add these to your sources/meta-yours/recipes-kernel etc to make the changes permanent.

2022年11月15日 · Subject: [PATCH] ARM: dts: imx: trim addresses to 8 digits; From: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> Date: Tue, 15 Nov 2022 11:50:51 +0100; Cc: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> Hex numbers in addresses and sizes should be rather eight digits, not nine. Drop leading zeros.

libdrm is a low-level library, typically used by graphics drivers such as the Mesa drivers, the X drivers, libva and similar projects. The library should be regularly updated to match the recent changes in the include/uapi/drm/.

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On Tue, 15 Nov 2022 11:50:51 +0100, Krzysztof Kozlowski wrote: > Hex numbers in addresses and sizes should be rather eight digits, not > nine. Drop leading zeros. No functional change (same DTB). > > Applied, thanks! [1/1] ARM: dts: imx: trim addresses to 8 digits

2020年1月31日 · 在imx6平台上进行裸机程序开发时，通常需要添加imx头部信息，才能使的程序成功运行，是否有合适的工具能够完成这样的工作呢？ 答案是明显的，u-boot就是一个不择不扣的裸机程序，下载imx提供的u-boot源码，可以直接编译得到u-boot.bin与u-boot.imx文件，只要了解了nxp是如何将u-boot.bin变为u-boot.imx的我们也就知道如何为我们的裸机程序添加头部信息了。 1.下载nxp提供的u-boot源码。 前往nxp的git下载 u-boot. 为了了解nxp是如何将u-boot.bin变 …