# Legato Linux distribution (Yocto project) **URL:** https://forum.legato.io/c/legato-linux-distribution-yocto-project/6.md [Latest](https://forum.legato.io/latest.md) · [Categories](https://forum.legato.io/categories.md) --- ## [About the Legato Linux distribution (Yocto project) category](https://forum.legato.io/t/about-the-legato-linux-distribution-yocto-project-category/1980)
**Author:** [@system](https://forum.legato.io/u/system)\ **Replies:** 0\ **Last updated:** [February 26, 2014, 7:06am UTC](https://forum.legato.io/t/about-the-legato-linux-distribution-yocto-project-category/1980 "2014-02-26T07:06:02Z")
Questions & discussions related to Legato Linux distribution Yocto project - LTS Linux kernel, O/S packages, BSPs for Sierra Wireless modules, etc. --- ## [Downgrade R17 to R13.1](https://forum.legato.io/t/downgrade-r17-to-r13-1/6751)
**Author:** [@vyoma](https://forum.legato.io/u/vyoma)\ **Replies:** 3\ **Last updated:** [September 6, 2026, 1:22am UTC](https://forum.legato.io/t/downgrade-r17-to-r13-1/6751 "2026-09-06T01:22:10Z")
Module: WP7608 Background: some devices are in the field that are built with R13.1 My testing setup with the R17. I want to degrade to R13.1. I want to test the same scenario of the field device. I tried the office ve… --- ## [Build custom legato framework with custom yocto distrib](https://forum.legato.io/t/build-custom-legato-framework-with-custom-yocto-distrib/6950)
**Author:** [@Nicolas.B](https://forum.legato.io/u/Nicolas.B)\ **Replies:** 3\ **Last updated:** [September 25, 2025, 2:47pm UTC](https://forum.legato.io/t/build-custom-legato-framework-with-custom-yocto-distrib/6950 "2025-09-25T14:47:57Z")
Hi, I’m working on specific Legato applications that require a patched custom Legato framework on an FX30S Sierra LTE device. I’m trying to add a web server through lighttpd to configure ethernet connections. To do so,… --- ## [Failure to enumerate USB](https://forum.legato.io/t/failure-to-enumerate-usb/6943)
**Author:** [@jack.heaffey](https://forum.legato.io/u/jack.heaffey)\ **Replies:** 3\ **Last updated:** [August 26, 2025, 9:45am UTC](https://forum.legato.io/t/failure-to-enumerate-usb/6943 "2025-08-26T09:45:01Z")
Hi, I develop a device where a WP76xx cell module is a USB CDC device and a separate processor is the USB host. There are times when the USB host must disable the USB connection and restart the connection frequently, r… --- ## [Error building Pymodbus](https://forum.legato.io/t/error-building-pymodbus/5913)
**Author:** [@Pankaj](https://forum.legato.io/u/Pankaj)\ **Replies:** 20\ **Last updated:** [June 9, 2025, 3:44pm UTC](https://forum.legato.io/t/error-building-pymodbus/5913 "2025-06-09T15:44:09Z")
Facing error building pymodbus: Initialising tasks: 100% |#######################################| Time: 0:00:00 NOTE: Executing SetScene Tasks NOTE: Executing RunQueue Tasks ERROR: pymodbus-2.5+gitAUTOINC+731b080df0… --- ## [Unifying Legato and Yocto Build Environments in a Docker container](https://forum.legato.io/t/unifying-legato-and-yocto-build-environments-in-a-docker-container/6716)
**Author:** [@upsampled](https://forum.legato.io/u/upsampled)\ **Replies:** 7\ **Last updated:** [June 2, 2025, 12:15pm UTC](https://forum.legato.io/t/unifying-legato-and-yocto-build-environments-in-a-docker-container/6716 "2025-06-02T12:15:02Z")
I am trying to deploy one docker container to support a team of developers targeting the WP7702. We need to implement secure boot so per your App Notes, we need to build the base images and sign them and therefor need th… --- ## [WP7608 failed to boot](https://forum.legato.io/t/wp7608-failed-to-boot/6923)
**Author:** [@liem.le](https://forum.legato.io/u/liem.le)\ **Replies:** 10\ **Last updated:** [May 16, 2025, 3:00pm UTC](https://forum.legato.io/t/wp7608-failed-to-boot/6923 "2025-05-16T15:00:38Z")
I have a WP7608 board that was working fine. After using uartMode command to change uart mode and reboot, the board failed to boot with the following logs: B - 786839 - QSEE Execution, Start D - 884 - QSEE Exe… --- ## [Install gpsd on R13.01](https://forum.legato.io/t/install-gpsd-on-r13-01/6620)
**Author:** [@MVAJGER](https://forum.legato.io/u/MVAJGER)\ **Replies:** 10\ **Last updated:** [March 1, 2025, 7:23am UTC](https://forum.legato.io/t/install-gpsd-on-r13-01/6620 "2025-03-01T07:23:33Z")
Hi, Is it possible to install gpsd to R13.01? --- ## [Compilation error when using R17 legato and CONFIG\_EXT4\_FS=y](https://forum.legato.io/t/compilation-error-when-using-r17-legato-and-config-ext4-fs-y/6890)
**Author:** [@Joao.Costa7](https://forum.legato.io/u/Joao.Costa7)\ **Replies:** 1\ **Last updated:** [February 4, 2025, 4:24pm UTC](https://forum.legato.io/t/compilation-error-when-using-r17-legato-and-config-ext4-fs-y/6890 "2025-02-04T16:24:29Z")
Hello everyone, I tried to build a BSP with the R17 legato and I noticed that when I have this config flag: CONFIG\_EXT4\_FS=y there are some compilation errors: | /home/coj8brg/workspace/from\_scratch/slimscaley\_bsp/linu… --- ## [Device error code: 0x83 - Image size out of range](https://forum.legato.io/t/device-error-code-0x83-image-size-out-of-range/6886)
**Author:** [@vyoma](https://forum.legato.io/u/vyoma)\ **Replies:** 10\ **Last updated:** [February 3, 2025, 12:35pm UTC](https://forum.legato.io/t/device-error-code-0x83-image-size-out-of-range/6886 "2025-02-03T12:35:31Z")
I have detailed information below, I’m getting the Device error code: 0x83 - Image size out of range when we flash the software into the module. I have sufficient space in the module. side Tool Version swicwe (version … --- ## [Legato 21.05 and CONFIG\_PREEMPT\_RT](https://forum.legato.io/t/legato-21-05-and-config-preempt-rt/6885)
**Author:** [@sergey.semernin](https://forum.legato.io/u/sergey.semernin)\ **Replies:** 1\ **Last updated:** [January 29, 2025, 1:38am UTC](https://forum.legato.io/t/legato-21-05-and-config-preempt-rt/6885 "2025-01-29T01:38:29Z")
Hello, I found that latency of GPIO interrupt handlers is big and unstable. On other ARM Cortex-A7 systems, for example i.MX6ULL, I used CONFIG\_PREEMPT\_RT enabled in kernel configuration to get interrupt latency stable… --- ## [Qt 5.10 and Legato 21.05](https://forum.legato.io/t/qt-5-10-and-legato-21-05/6875)
**Author:** [@sergey.semernin](https://forum.legato.io/u/sergey.semernin)\ **Replies:** 5\ **Last updated:** [January 21, 2025, 11:14am UTC](https://forum.legato.io/t/qt-5-10-and-legato-21-05/6875 "2025-01-21T11:14:35Z")
Hello, I’m new to Legato Framework, and just checking if it possible to use WP7702 modem in my project. I prepared build environment using leaf, vscode, and etc. All seems working. I have other ongoing project with ap… --- ## [Device Tree custoimization](https://forum.legato.io/t/device-tree-custoimization/6852)
**Author:** [@upsampled](https://forum.legato.io/u/upsampled)\ **Replies:** 17\ **Last updated:** [December 5, 2024, 6:39pm UTC](https://forum.legato.io/t/device-tree-custoimization/6852 "2024-12-05T18:39:13Z")
I need to modify the DTS file associated with the WP7702 to indicate that there is a SPI NOR flash connected. What is the ‘main’ DTS file associated with this model? Typically this file is located in kernel/arch/arm/boot… --- ## [Kernel module gpio numbers](https://forum.legato.io/t/kernel-module-gpio-numbers/6823)
**Author:** [@pmark](https://forum.legato.io/u/pmark)\ **Replies:** 2\ **Last updated:** [October 31, 2024, 2:28pm UTC](https://forum.legato.io/t/kernel-module-gpio-numbers/6823 "2024-10-31T14:28:41Z")
I am trying to use gpio pins in a kernel module, if i use the commandline everything is fine if i use ex. root@swi-mdm9x28-wp:/sys/devices/platform/1000000.pinctrl/gpiochip0/gpio/gpio23# echo 1 \> value but from the ke… --- ## [Example on using skylight with WP76 on Win11 to have USB tethering](https://forum.legato.io/t/example-on-using-skylight-with-wp76-on-win11-to-have-usb-tethering/6808)
**Author:** [@jyijyi](https://forum.legato.io/u/jyijyi)\ **Replies:** 0\ **Last updated:** [October 12, 2024, 6:45am UTC](https://forum.legato.io/t/example-on-using-skylight-with-wp76-on-win11-to-have-usb-tethering/6808 "2024-10-12T06:45:46Z")
Example on using skylight with WP76 on Win11 to have USB tethering: How to use skylight with WP76 on Win11 to have USB tethering.docx (504.9 KB) --- ## [Issue on the bluetooth on mangOh yellow device wp7702 modem](https://forum.legato.io/t/issue-on-the-bluetooth-on-mangoh-yellow-device-wp7702-modem/6801)
**Author:** [@elmanju07](https://forum.legato.io/u/elmanju07)\ **Replies:** 3\ **Last updated:** [October 1, 2024, 1:40pm UTC](https://forum.legato.io/t/issue-on-the-bluetooth-on-mangoh-yellow-device-wp7702-modem/6801 "2024-10-01T13:40:50Z")
root@swi-mdm9x28-wp:~# bluemoon Bluemoon configuration utility ver 5.50 Failed to open HCI user channel i am faceing the issue when i want to start an blutoothctl it is not working in the mangoh yellow board any drive… --- ## [No traffic on eth0](https://forum.legato.io/t/no-traffic-on-eth0/6796)
**Author:** [@liem.le](https://forum.legato.io/u/liem.le)\ **Replies:** 12\ **Last updated:** [September 20, 2024, 6:15pm UTC](https://forum.legato.io/t/no-traffic-on-eth0/6796 "2024-09-20T18:15:59Z")
I have a custom board with WP7608 connected directly to LAN7850 using HSIC lines. eth0 is working fine with R16.0.1 and R16.3, but not R17. No packet can be sent or received on eth0. If you have the similar issue, please… --- ## [Example on downloading FX30 yocto source from Github](https://forum.legato.io/t/example-on-downloading-fx30-yocto-source-from-github/6789)
**Author:** [@jyijyi](https://forum.legato.io/u/jyijyi)\ **Replies:** 0\ **Last updated:** [September 17, 2024, 1:00am UTC](https://forum.legato.io/t/example-on-downloading-fx30-yocto-source-from-github/6789 "2024-09-17T01:00:46Z")
Here is example on downloading FX30 yocto source from Github: Example on downloading FX30 yocto source from Github.docx (93.3 KB) --- ## [\[WP7702\]\[R14.1\]\[Legato19.11.5\] RTC alarm set to 1 hour](https://forum.legato.io/t/wp7702-r14-1-legato19-11-5-rtc-alarm-set-to-1-hour/6763)
**Author:** [@Madjid](https://forum.legato.io/u/Madjid)\ **Replies:** 11\ **Last updated:** [July 5, 2024, 3:35pm UTC](https://forum.legato.io/t/wp7702-r14-1-legato19-11-5-rtc-alarm-set-to-1-hour/6763 "2024-07-05T15:35:24Z")
Hello, When trying to register a wakeup alarm using rtc0 with wakealarm file to wakeup from suspend to ram I observed that something is setting an alarm more or less each pm resume to usually 1h0m27s once the first wake… --- ## [Cm data connect failed](https://forum.legato.io/t/cm-data-connect-failed/6755)
**Author:** [@tanaporn\_y](https://forum.legato.io/u/tanaporn_y)\ **Replies:** 6\ **Last updated:** [June 27, 2024, 8:48am UTC](https://forum.legato.io/t/cm-data-connect-failed/6755 "2024-06-27T08:48:53Z")
How can I connect data?? root@swi-mdm9x28-wp:~# cm data connect Setting up profile 1 Connecting ... failed Thu Jun 27 16:26:56 +09 2024 - Connection Failure: LE\_FAULT what I have setting: root@swi-mdm9x28-wp:~# cm ra… --- ## [Cannot download firmware to wp76xx](https://forum.legato.io/t/cannot-download-firmware-to-wp76xx/6753)
**Author:** [@tanaporn\_y](https://forum.legato.io/u/tanaporn_y)\ **Replies:** 5\ **Last updated:** [June 24, 2024, 2:43am UTC](https://forum.legato.io/t/cannot-download-firmware-to-wp76xx/6753 "2024-06-24T02:43:26Z")
I had make and downloaded firmware in to “wp7605” but it cannot use legato command(e.g. app status) . So,I want to download new firmware but it was error. Please help me to solve this problem by PC: exars@exars:~/デスクト… --- ## [Warnings when creating the \`spk\` file with Modem Firmware from Firmware 15.1 Components](https://forum.legato.io/t/warnings-when-creating-the-spk-file-with-modem-firmware-from-firmware-15-1-components/6717)
**Author:** [@upsampled](https://forum.legato.io/u/upsampled)\ **Replies:** 5\ **Last updated:** [March 18, 2024, 5:36pm UTC](https://forum.legato.io/t/warnings-when-creating-the-spk-file-with-modem-firmware-from-firmware-15-1-components/6717 "2024-03-18T17:36:57Z")
I am trying to create base images for WP7702 devices in a production environment using the following components derived form the Firmware 15.1 (FW 15.1) release: appsboot\_wp77xx.cwe generated from yocto distro from FW… --- ## [Adding Yocto built packages to a target](https://forum.legato.io/t/adding-yocto-built-packages-to-a-target/6718)
**Author:** [@upsampled](https://forum.legato.io/u/upsampled)\ **Replies:** 1\ **Last updated:** [March 14, 2024, 2:05am UTC](https://forum.legato.io/t/adding-yocto-built-packages-to-a-target/6718 "2024-03-14T02:05:19Z")
Yocto allows for other applications/libraries to be built for WP target. Great example would be lsusb and libusb (the former being dependent on the later). The Yocto Distro released in Firmware 15.1 will build these both… --- ## [Can't use manifest for release 17 WP76xx](https://forum.legato.io/t/cant-use-manifest-for-release-17-wp76xx/6535)
**Author:** [@johnn](https://forum.legato.io/u/johnn)\ **Replies:** 27\ **Last updated:** [January 29, 2024, 1:34pm UTC](https://forum.legato.io/t/cant-use-manifest-for-release-17-wp76xx/6535 "2024-01-29T13:34:42Z")
Hi, Release 17 for WP76xx is now available for download and can be obtained using Leaf. I would like to use the manifest file from GitHub - legatoproject/manifest: repo manifests for Legato , however i cannot sync prod… --- ## [Audio Codec prevents suspend mod](https://forum.legato.io/t/audio-codec-prevents-suspend-mod/6670)
**Author:** [@bcan](https://forum.legato.io/u/bcan)\ **Replies:** 18\ **Last updated:** [January 8, 2024, 1:26pm UTC](https://forum.legato.io/t/audio-codec-prevents-suspend-mod/6670 "2024-01-08T13:26:44Z")
When I examined suspend\_stats, I noticed that device 4-001a (audio codec) prevents suspend mod. What could be the reason for this? /sys/kernel/debug/suspend\_stats success: 99 fail: 29 failed\_freeze: 3 failed\_prepare: 0 … --- ## [Question regrding configECM](https://forum.legato.io/t/question-regrding-configecm/6673)
**Author:** [@ofir](https://forum.legato.io/u/ofir)\ **Replies:** 2\ **Last updated:** [January 1, 2024, 4:24pm UTC](https://forum.legato.io/t/question-regrding-configecm/6673 "2024-01-01T16:24:17Z")
Using WP7611, I am configuring my ecm like so: configEcm on target 10.5.0.4 host 10.5.0.1 netmask 255.255.255.0 My question is, how does the WP7611 assign the host address? does it use dhcp? What will happen if I add … --- ## [Issues installing openvpn client on sierra wireless wp7611](https://forum.legato.io/t/issues-installing-openvpn-client-on-sierra-wireless-wp7611/6672)
**Author:** [@ofir](https://forum.legato.io/u/ofir)\ **Replies:** 6\ **Last updated:** [December 28, 2023, 10:17am UTC](https://forum.legato.io/t/issues-installing-openvpn-client-on-sierra-wireless-wp7611/6672 "2023-12-28T10:17:24Z")
I am trying to install an openvpn client on sierra wireless wp7611. but I see a weird error. Device info: # uname -a Linux swi-mdm9x28-wp 3.18.140 #1 PREEMPT Thu Dec 7 09:52:21 UTC 2023 armv7l GNU/Linux This is my cl… --- ## [Problem to call data\_connection services](https://forum.legato.io/t/problem-to-call-data-connection-services/4338)
**Author:** [@vishalgore](https://forum.legato.io/u/vishalgore)\ **Replies:** 24\ **Last updated:** [December 28, 2023, 9:44am UTC](https://forum.legato.io/t/problem-to-call-data-connection-services/4338 "2023-12-28T09:44:45Z")
Hi all, I have used the sample program for data connection I am not able to start data\_connection services ,its automatically get stops. Here are the error log: 97\]/swiQmi T=main | swiQmi.c swiQmi\_CheckResponse() 796… --- ## [ttyHSL1 with swi-fx30-cat1\_2.0.1](https://forum.legato.io/t/ttyhsl1-with-swi-fx30-cat1-2-0-1/6667)
**Author:** [@xgaillard](https://forum.legato.io/u/xgaillard)\ **Replies:** 5\ **Last updated:** [December 19, 2023, 8:29am UTC](https://forum.legato.io/t/ttyhsl1-with-swi-fx30-cat1-2-0-1/6667 "2023-12-19T08:29:12Z")
Hello, using a FX30 with a serial extension, I’have tried to use the new firmware for my appli but I cannot have the /dev/ttyHSL1 device for my app (AT!MAPUART=17,2 not working). Regards --- ## [Sdk does not containing json-glib](https://forum.legato.io/t/sdk-does-not-containing-json-glib/6650)
**Author:** [@MVAJGER](https://forum.legato.io/u/MVAJGER)\ **Replies:** 3\ **Last updated:** [December 1, 2023, 11:04am UTC](https://forum.legato.io/t/sdk-does-not-containing-json-glib/6650 "2023-12-01T11:04:25Z")
Hello! I would like to create an SDK for R17, which should be generated by the make toolchain\_bin command. My problem is that after adding json-glib to the image.inc and compiling the SDK, the SDK does not include the l… [Next page](https://forum.legato.io/c/legato-linux-distribution-yocto-project/6.md?page=1)