embedded-linux Questions
2
Solved
I am using Yocto project to build Linux distribution for my embedded board. After the build, I needed to use a cross compiler to compile applications from my host machine to be executed on my board...
Scleroderma asked 1/7, 2019 at 9:1
1
Solved
I am using Yocto project to build a customized distribution to my board. I just want to ask you, what is the difference between distro features, machine features and image features ?
Whittemore asked 1/6, 2019 at 17:2
3
Solved
What linux permissions are needed for SystemProperties.set to work? (android)
I am writing an app that runs in system/app on an android device.
It is running as
android:sharedUserId="android.u...
Sclerite asked 22/12, 2014 at 23:1
5
Solved
I'm looking for the value of the time slice (or quantum) of my Linux kernel.
Specific Questions:
Is there a /proc file which expose such an information ?
(Or) Is it well-defined in the Linux he...
Abscise asked 6/5, 2013 at 14:48
8
Solved
Does anyone know of a way to get U-boot version installed from userspace? There is the fw_printenv command that provides access to U-boot's environment variables, but not the version.
Culliton asked 25/4, 2011 at 18:35
3
I am using buildroot to build linux firmware. How can I do a clean rebuild the linux kernel only (without having to build the whole thing which take an hour)?
I tried -
make linux-rebuild
but ...
Diaphragm asked 17/5, 2018 at 21:21
10
In my ARM based custom board, I flash u-boot to NAND whenever I do changes on that. (putting some debug statements/modification). Is there any way to directly load the uboot image in RAM memory ins...
Plenipotentiary asked 7/3, 2011 at 10:22
1
I am developing C function to shutdown my Embedded Linux system (Ubuntu) using the following way.
#include <stdlib.h>
int main()
{
system("shutdown -P now");
return 0;
}
Is this approa...
Certify asked 21/11, 2018 at 5:35
1
Solved
My custom development board is based on x86 and one of the electronic component which is connected to it (through SPI mainly) cannot be controlled easily without using the vendor kernel driver (and...
Aardwolf asked 15/2, 2016 at 21:15
4
I have recently started working on ARM Cortex Microcontrollers. While reading different articles over Internet, I usually found 2 common terms as Software Interrupt and Hardware Interrupt.
What is ...
Ulrika asked 15/11, 2017 at 13:21
1
I have an embedded process that renders to a screen directly using DRM & KMS APIs. It's running on a minimal Yocto distribution (no desktop or Wayland).
I would like to render to a second scree...
Hornbeck asked 10/12, 2018 at 20:4
2
Solved
For context, programming a driver to interact with an FPGA IP core on an embedded Linux (Yocto: krogoth) on a Xilinx board.
For debugging purposes I would like to read out specific memory addresse...
Stilliform asked 8/12, 2017 at 13:11
1
Solved
What is the best approach for maintaining image versions in Yocto.
I mean suppose we build an image and given it to customer, in future we provided bug fixes to the customer..
How can we know whi...
Miserly asked 11/10, 2018 at 9:31
1
Solved
I have a simple python application which does:
acquire information from a GPS
parse information
store it in InfluxDB
The package requirements:
certifi==2018.4.16
chardet==3.0.4
idna==2.6
infl...
Annunciator asked 20/5, 2018 at 15:27
4
Solved
I plan to develop a nice little application that will run on an arm-based embedded Linux platform; however, since that platform will be battery-powered, I'm searching for relevant information on ho...
Resistance asked 22/6, 2010 at 11:9
1
I'm trying to setup Bluetooth on an embedded Linux device such that SSP mode is used, with my device generating and displaying a passcode on it's display, and the remote end (e.g. user's phone) bei...
Parmesan asked 3/9, 2018 at 3:29
4
Solved
There was a project thrown my way recently that involves the orchestration of several (Linux capable) embedded devices, deploying software to them, and allowing for the applications to be updated w...
Stalder asked 1/12, 2015 at 0:58
2
I can use hcitool lescan with the --duplicates flag to capture periodic LE Advertising Reports (proximity beacons) from two nearby BLE devices:
$ sudo hcitool lescan --duplicates
LE Scan ...
C8:0F...
Mcnully asked 13/4, 2016 at 19:17
3
Solved
I have a device tree file (.dts) and I want to compile the file for my powerpc based board.
How can I do it on my machine, which is not powerpc based?? Can I do it with the DTC installed on my Ubu...
Amberjack asked 10/2, 2014 at 7:7
2
Solved
I'm studying on writing embedded linux driver, and decided to fire a few GPIOs to make sure I understand the book (LDD3, chap9.4.1) correctly.
I am able to control the correct GPIO pins as intended...
Ingratiate asked 7/10, 2011 at 2:9
2
Solved
I have read and almost gone through all the linux kernel documentation on the device tree and device tree overlays.I am not able to understand if we have to create a new entree in the device tree o...
Outleap asked 1/8, 2016 at 13:9
1
I'm working on an embedded system where the rootfs is constructed in a tmpfs partition by the init process. After the rootfs is complete, it will do a pivot-root and start spawning processes locate...
Gherardi asked 19/5, 2016 at 8:12
6
Solved
In embedded devices such as printer, switches, I am confused what the difference between the firmware and the operating system is. Are embedded devices operating systems similar to PCs (Linux and W...
Largely asked 29/3, 2013 at 11:32
3
Solved
I would like to know the address of a kernel module. Actually, from stack trace it looks that the crash has been triggered from a kernel module (which have been insmoded after system boots up). The...
Siphonostele asked 17/6, 2011 at 10:46
3
Solved
I am trying to run Yocto Image in qemu on my Ubuntu laptop with the following command.
qemu-system-arm -M overo -m 256 -sd ./test.img -clock unix -serial stdio -device usb-mouse -device usb-kbd
...
Cid asked 29/10, 2013 at 17:39
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