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I am trying to make GPIOs start up low based on a patch to my yocto u-boot recipe. I apply a patch to my u-boot recipe using devtool. The patch adds new inputs to the board_init file in u-boot (which ...
Camstillo's user avatar
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I have created a cflow build and when loading the image in the system, I could see only fewer number of gcda files. After upgrading from GCC 8.5.0 to GCC 14.2.0, runtime code coverage (.gcda file ...
s mathew's user avatar
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How can I enable XNNPACK on a Raspberry Pi 5 for an INT8 TensorFlow Lite model? I have a quantized INT8 TensorFlow Lite model that I want to run efficiently on my Raspberry Pi 5. I’ve read that ...
AKASH's user avatar
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168 views

I have a single board computer with a I2C GPIO expander device, listed as /dev/i2c-0. In my multithreaded program I open() this character device and read/write to it on separate threads using ...
j-hc's user avatar
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I have been working on multiple projects of Embedded Linux from last 5 years but there is a small problem when I use UART. I am using STM32MP13F with MYIR board. The UART is connected to half duplex ...
Hamza Mehboob's user avatar
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I'm trying to create a Bitbake recipe which imports the Clickhouse python library. I'm following the example set in this post. I have a unique problem in that the name of the recipe is very sensitive ...
Camstillo's user avatar
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125 views

I have a device driver that provides quite simple functionality that does not belong to any of the classes. The driver exposes one attribute through sysfs. Currently I can get an access to my device ...
bielu000's user avatar
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1 answer
215 views

I am trying to build a driver for my IP in an FPGA. I have: static const struct of_device_id myip_of_match[] = { { .compatible = "xlnx,myip-controller-1.022", }, {}, }; ...
bLAZ's user avatar
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1 vote
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71 views

Each scheduling policy (like SCHED_NORMAL, SCHED_FIFO etc..) is implemented as a struct sched_class, and instances like fair_sched_class, rt_sched_class, dl_sched_class, etc., are defined using the ...
void_brain's user avatar
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I'm building a kernel image, with my own kernel module being added to the build, using my own Makefile and Kbuild scripts. The final complete kernel image gets flashed to a ROM. I have a few kernel ...
Ken Y-N's user avatar
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I'm developing a Linux kernel driver for the BeagleBone Black and want to use two GPIOs available on the P9 expansion header: P9.15 → gpio1_16 → connected to an LED P9.23 → gpio1_17 → connected to a ...
void_brain's user avatar
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When testing linux kernel 5.10 on Zynq-7010 FPGA with multiple sequential interrupts I get Unhandled fault: imprecise external abort (0x1406) from the interrupt handler an example of the failure (from ...
Pete's user avatar
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69 views

If I'm working for example with the Xilinx ZU2CG SoC, and a pin named as an "AC3" (xczu2cgsfvc784 pinout) is interesting for me, where can I find what is the gpio number under Linux for that ...
Александар's user avatar
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72 views

I have built 6.6.x linux kernel : https://github.com/raspberrypi/linux/tree/rpi-6.6.y for RPi3B+ (arm64 target). The rootfs came from buildroot-2025.05-arm64. I am running it on RPi3B+ and following ...
InsaneCoder's user avatar
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490 views

I am trying to add a device tree overlay file in yocto for the raspberry pi. I have read this answer however there are still some things I am not understanding. I have created a workspace using dev-...
Tommy's user avatar
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1 answer
71 views

I am trying to set up port forwarding on an armv7 (CyclonV) device with a custom yocto image using a Xenomai4 Kernel 6.1.137. Iptables tells me, I have no 'nat' table and need a different kernel. I do ...
user22600779's user avatar
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1 answer
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Problem Description I'm developing a USB 2.0 gadget using Linux FunctionFS (ConfigFS) on an embedded device running kernel 4.9.118. My goal is to implement a vendor-specific bulk data interface that ...
Dongju Park's user avatar
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When writing a console program in the C programming language for the Linux (the Linux is installed on the Respberry Pi), you can use remote development and debugging using the Eclipse on the Windows ...
Mykola Levun's user avatar
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1 vote
1 answer
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I'm a full beginner in Linux. I need to program some PLC (ADAM 5630 of Advantech). It is based on the CPU TI Cortex A8 and has Linux RT 3.12 (Linux adam5630 3.12.10-rt15-ti2013.12.01; Distributor: ...
Alex Nevskiy's user avatar
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1 vote
1 answer
865 views

After successfully compiling the AOSP build from the repo tried starting the emulator with the command provided in the documentation $launch_cvd --daemon but encountered the following error log: 06-...
Nitish Sharma's user avatar
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127 views

I've been working on learning cross-compilation for embedded linux, with the eventual end goal being to compile an RTL8188 Wifi USB dongle kernel module for an old embedded linux device that doesn't ...
Axel's user avatar
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1 vote
2 answers
113 views

I am using an embedded linux (Yocto project) and recently upgraded to the latest boost version. The compiler used is arm-poky-linux-gnueabi-g++ (GCC) 13.3.0 The problem I am facing can be reproduced ...
Lycosa's user avatar
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0 votes
1 answer
161 views

Background I have a boot2qt recipe that I have inherited based on 5.15.5 that has been customised. One of the customisations is to alter the kernel splash screen but I can't figure out how it is ...
Tommy's user avatar
  • 675
0 votes
0 answers
60 views

The question is about how the rauc status mark-active other command work with the layouts with only 1 slot for the element (A/B scheme is not supported). We use RAUC for updates management on our ...
user3518295's user avatar
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0 votes
0 answers
169 views

I've been trying to build compatible Android modules (.ko) for my target platform: STM32MP25F7-EV1. It runs OpenSTDroid Distribution, a modified version of AOSP. I've successfully built my desired ...
ozi's user avatar
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0 answers
200 views

I'm porting a board over to a newer version of Yocto and this includes U-Boot. In the old U-Boot the MAC address was set in uEnv.txt by setting the ethaddr variable. This worked well as every board ...
Thomas Snyman's user avatar
  • 31
2 votes
2 answers
200 views

I have built a custom yocto image for my BBB and I'm having trouble with the UART. I have two uarts mapped ttyS1 and ttyS4. But for some reason I'm having trouble with ttyS1 timing out writing data, ...
Thomas Snyman's user avatar
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0 answers
93 views

How to configure the RK3568 ETH0_REFCLKO_25M pin to operate at 25MHz? Currently, it outputs a frequency of 125MHz. This pin is used for clocking the KSZ9031 Ethernet PHY. Current settings dts: &...
Neverun's user avatar
  • 1
0 votes
1 answer
101 views

What method should be used to implement 1-wire communication (master) on STM32MP13x board? After doing the research I've found that: for RPI, kernel module w1-gpio can be used to achive 1-wire ...
Mateusz Michala's user avatar
  • 21
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0 answers
57 views

I'm writing a semi-realtime application for an embedded board running BusyBox which packages and sends some telemetry data (around 100KB) on a TCP socket every 100 milliseconds. This board uses the ...
Work's user avatar
  • 23
0 votes
2 answers
101 views

I am a noob in learning Linux, and I am learning platform device and driver functionality, and I am testing a simple Linux device code here. #include "platform.h" struct platform_device *...
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122 views

I'm trying to learn USB linux device drivers to implement a project idea I have: Primary device is a Rasp Pi with USB port Secondary device is a custom USB stick that I'm going to design with some ...
androidFan's user avatar
  • 611
0 votes
0 answers
57 views

We are developing a product using the i.MX93 SoC. Our board design requires that a dedicated PSHOLD GPIO pin be toggled to completely cut power during shutdown. We attempted to use the gpio‑poweroff ...
A.A.'s user avatar
  • 175
0 votes
0 answers
111 views

I am working on a custom platform running embedded Linux with custom kernel modules (I have no access to them). From time to time, the following message appears on the console: [ 634.900724] ---------...
MKuma's user avatar
  • 33
2 votes
1 answer
335 views

I am trying to send raw mmc commands to SD card using Linux MMC subsystem mmc-utils and ioctl and running into Connection timed out (errno: 110). The SD card is micro-sd card that is used in raspberry ...
Preeti 's user avatar
  • 803
0 votes
0 answers
99 views

I need to add two new PWM pins to my DTS file on a BeagleBone Black. How can I do that? It has the P9_42 as the PWM pin, but I'm having some difficulty in adding another PWM pin. I'll use in mg90 for ...
Vitória Silva's user avatar
  • 1
0 votes
0 answers
51 views

I'm trying to compile the LicheePi Zero linux kernel by following different pages but so far I haven't succeeded. I'm using the Ubuntu WSL console on Windows11. When I run the following command make ...
Libreik's user avatar
  • 31
0 votes
0 answers
73 views

I am developing a QML application for an HMI device running embedded linux. I have develoed my application on Ubuntu desktop pc with Qt6.8.1 and Material style QtQuick controls. On desktop the UI ...
Neeraj Usadadiya's user avatar
  • 11
3 votes
1 answer
305 views

I'm rebuilding the kernel (5.10.204) to run on the aio-3588jq board under the rk3588 processor. After loading the cfg80211 certificate (cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'), ...
Ura's user avatar
  • 31
0 votes
2 answers
117 views

While I compile DTS for my device, it gives me warnings, that don't really make sense to me. There are two spi-chips on my device, their description is DTS is the following: spi-gpio { compatible =...
Michael_Y's user avatar
  • 41
0 votes
0 answers
33 views

I am trying to build a kernel module through yocto. I have this simple Makefile that builds the module from a single source file and then everything is fine: obj-m := my_nand_controller.o KERNEL_SRC :...
bLAZ's user avatar
  • 1,767
0 votes
0 answers
48 views

I have a custom board based on radxa rock 5 and im trying to access internet using my 4G sim. Using the PPP protocol to enable connection and dialling up internet. Im using scripts to automate the ...
Lochan R's user avatar
  • 1
1 vote
1 answer
433 views

I am trying to follow the linux i2c slave documentation https://docs.kernel.org/i2c/slave-interface.html when I attempt to compile the kernel module using make I get this error: ERROR: modpost: "...
aapples's user avatar
  • 11
1 vote
0 answers
93 views

I am building a cross-native toolchain with crosstool-ng: build=x86_64, host=target=arm. I need this new toolchain to include a different glibc than the one already installed to the system at /. On ...
Christian Chapman's user avatar
  • 1,044
0 votes
0 answers
71 views

I am trying to connect to a hidden Wi-Fi network using Connman in my Qt project via DBus. I am able to connect to non-hidden networks without any issue, but when trying to connect to a hidden network, ...
gilding's user avatar
  • 1
0 votes
1 answer
97 views

We're transitioning from embedded firmware to Linux development and have a specific requirement: we need to generate a digital waveform (a sequence of 1s and 0s) on a GPIO pin at a specific frequency ...
jerry's user avatar
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1 vote
0 answers
117 views

I was messing around with a cheap IP camera from Amazon. The board uses an Ingenic T20, which seems to be very common for this application. I desoldered the QSPI NOR Flash and dumped it with another ...
user3630570's user avatar
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0 votes
0 answers
430 views

I want to build docker container based on yocto to create Linux environment for Application to run on Host machine instead of actual Linux Board. I know how to build docker container based any base ...
raj123's user avatar
  • 701
1 vote
1 answer
73 views

A little background, I want to receive CAN frames to Linux SOM, which does not have CAN peripheral, so I use stm32 which acts just like a bridge that sends CAN frames over UART to SoM. That part is ...
thePhisitian's user avatar
  • 21
0 votes
0 answers
172 views

I'm trying to make a USB gadget, using the ConfigFS utilities. I'm following this clear guide and have successfully created a usb gadget with an interface. My problem is that I would like to implement ...
Lorenzo Lucchina's user avatar
  • 11

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