All Questions
312
questions
0
votes
1
answer
31
views
How to get root-Access and/or update/extract firmware via UART
I would like to try to equip my non-specific China-Wall-Brick-WiFi-Router with root access and update it if necessary.
Here is a sample image of the device:
The problem is: The device has no official ...
- 101
1
vote
1
answer
19
views
drmModePageFlip() is failing when process started by systemd service
I created one Linux(STM32MP157 Olinuxino) application which uses DRM and OpenGL libs. The app is running without any issues when started from terminal. My application calls drmModePageFlip() twice ...
- 111
1
vote
0
answers
74
views
Remote control and display of embedded Linux devices
Background information - We have two custom embedded Linux devices that both contain their own GUI for operating and controlling each device and it's software/firmware. The devices are class 2 medical ...
- 11
0
votes
1
answer
27
views
Embedded Linux - How come virtual kernel memory is bigger than physical memory?
I'm running a custom Linux distribution on my ARM-based system (it's got two A7s).
The Linux kernel version is 4.86.9.
In the process of investigating some weird graphical glitches occuring on the ...
- 9
0
votes
1
answer
25
views
How would one build a working Linux volume for a 32-bit PowerPC headless platform using a non-PPC host?
Is there a tool similar to debootstrap for a recent Linux distribution that supports PPC so I could build a working system or have an automated process to cross-compile a base install?
- 1,218
0
votes
0
answers
116
views
Linux USB gadget configured through configfs
I have successfully configured USB On-The-Go (OTG) on an STM32 MPU (Linux) to support both Abstract Control Model (ACM) and Human Interface Device (HID) protocols. I utilized the ...
- 1
2
votes
3
answers
46
views
Is Linux /usr/share/zoneinfo/ Platform Agnostic?
I am working with an embedded Linux (ARM/busybox) system. It has systemd and the timedatectl system executable, but it does not have /etc/timezone, /usr/share/zoneinfo, nor the zic timezone data ...
- 33
-1
votes
1
answer
88
views
Which SD card journaling file system for Windows and Linux?
I have to make a choice between all SD card file system for an embedded device under Linux.
The goals are :
Read and Write under Windows and Linux
Journaling file system to prevent system crash or ...
- 1
1
vote
0
answers
163
views
Is it possible to specify sleep mode "freeze, mem, suspend and etc." using systemctl?
As far as i know we can know we can check which low power configurations are available for our Linux computer by reading /sys/power/state file. We can turn low power mode by writing one of this ...
0
votes
0
answers
78
views
Yocto Project for a New Board
I am trying to hunt down specifics on Yocto in regards to how to set up the filesystem before the build of poky.
I have a new board that I wanted to try Yocto on.
I have this FS so far after source oe-...
- 105
0
votes
1
answer
85
views
Handle Partition Changes Embedded System
I have to update some outdated embedded systems. But the RAUC Update contains four partitions, while the old systems have only three partitions.
The additional Partition is at the start of the disk ...
- 135
1
vote
0
answers
36
views
Need to modify OS of a device which use Embeded linux with u-boot
I have a Congatec device running Linux with U-Boot (U-Boot SPL 2015.10+fslc+g4e28939_).
I need to modify certain settings within this embedded Linux environment.
The challenge lies in the fact that ...
- 11
1
vote
1
answer
4k
views
How to find the port number given the ip address
I could find the ip address of my board by using ifconfig but I need the port number as well to set Linux TCF agent. I tried netstat with several options but could not find as it returns too many and ...
- 113
0
votes
0
answers
46
views
clone uboot and embedded linux fw (openwrt) to a single binary image
I have my embedded device with the following partition:
# cat /proc/mtd
dev: size erasesize name
mtd0: 00030000 00010000 "u-boot"
mtd1: 00010000 00010000 "u-boot-env"
mtd2: ...
- 301
0
votes
0
answers
274
views
Usb device wont enumerate after booting kernel on a custom board : usb 1-1: device descriptor read/64, error -71
When i plug in my usb device I get the following errors:
usb 1-1: new high-speed USB device number 2 using xhci-hcd
usb 1-1: device descriptor read/64, error -71
usb 1-1: device descriptor read/64, ...
- 1