# \[Solved\] Compiling WiFi Driver **URL:** \ **Category:** mangOH Green\ **Created:** [January 16, 2018, 9:03pm UTC](https://mangoh.discourse.group/t/solved-compiling-wifi-driver/1085 "2018-01-16T21:03:15Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![rauger1](https://avatars.discourse-cdn.com/v4/letter/r/ac91a4/32.png) [@rauger1](https://mangoh.discourse.group/u/rauger1)\ **Post date:** [January 16, 2018, 9:03pm UTC](https://mangoh.discourse.group/t/solved-compiling-wifi-driver/1085/1 "2018-01-16T21:03:15Z")
Hi, I am working on updating some wifi-driver software. I am trying to build it for a wp85 board. I went through the setup here: [Install the Application Framework - Legato Docs](http://legato.io/legato-docs/latest/basicBuildLegato.html#buildDownload) , and installed everything. Here is running cfgLegato which sets up the development environment variables: > mangoh@mangoh-virtualbox:~/repos/legato-af-16.10.3$ cfgLegato > Modules: wp85, wp750x > SDK Path: /home/mangoh/legato/packages/legato.sdk.17.6.0.wp85-wp75-native-x86\_64-201707120921 > Framework Path: /home/mangoh/legato/packages/legato.framework.17.6.0.wp85-wp750x-201707120855 - $LEGATO\_ROOT > Toolchain Path: /home/mangoh/legato/packages/legato.toolchain.1.7.3.SWI9X15Y\_07121000-wp85-wp750x-native-x86\_64-201707120848 - $WP85\_TOOLCHAIN\_DIR $WP750X\_TOOLCHAIN\_DIR > Device Image Path: /home/mangoh/legato/packages/legato.device.image.7.12.10.00.wpX5-201707120854 - $LEGATO\_DEVICE\_IMAGE > Recovery tools Path: /home/mangoh/legato/packages/legato.recovery.4.0.6.1.linux-201704190909 - $LEGATO\_RECOVERY > No toolchain found for target ‘ar7’. > Unable to find compatible cross-build toolchain for target ‘ar7’. > No toolchain found for target ‘ar86’. > Unable to find compatible cross-build toolchain for target ‘ar86’. > Toolchain specified for target ‘wp76xx’ is invalid. > Unable to find compatible cross-build toolchain for target ‘wp76xx’. > Toolchain specified for target ‘ar758x’ is invalid. > Unable to find compatible cross-build toolchain for target ‘ar758x’. > Toolchain specified for target ‘ar759x’ is invalid. > Unable to find compatible cross-build toolchain for target ‘ar759x’. > Toolchain specified for target ‘em75xx’ is invalid. > Unable to find compatible cross-build toolchain for target ‘em75xx’. > /home/mangoh/repos/legato-af-16.10.3 I cloned the repo here: [GitHub - legatoproject/legato-WiFi: WiFi support for Legato](https://github.com/legatoproject/legato-WiFi.git) and tried to make and got an error that a source file could not be found…: > \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* VERSION \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* > Legato WiFi version is 17.09.0-7-g5445645 > > * * * > > make -C /home/mangoh/repos/legato-WiFi/service wp85 > make[1]: Entering directory ‘/home/mangoh/repos/legato-WiFi/service’ > mkapp -v -t wp85 > -i /home/mangoh/repos/legato-WiFi/platformAdaptor/inc/ > wifiService.adef > Env var ‘WP77XX\_TOOLCHAIN\_DIR=/opt/swi/y17-ext/sysroots/x86\_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi’ became ‘SHELL=/bin/bash’. > Environment variables are different this time. > Parsing file: ‘/home/mangoh/repos/legato-WiFi/service/wifiService.adef’. > Modelling application: ‘wifiService’ > defined in ‘/home/mangoh/repos/legato-WiFi/service/wifiService.adef’ > Application ‘wifiService’ contains executable ‘wifiService’. > Parsing file: ‘/home/mangoh/repos/legato-WiFi/service/daemon/Component.cdef’. > Modelling component: ‘daemon’ > found at: ‘/home/mangoh/repos/legato-WiFi/service/daemon’ > \*\* ERROR: > /home/mangoh/repos/legato-WiFi/service/daemon/Component.cdef:15:4: error: Couldn’t find source file ‘/home/mangoh/repos/legato-WiFi/…/service/platformAdaptor/ti/pa\_wifi\_client\_ti.c’ > Makefile:10: recipe for target ‘wp85’ failed > make[1]: \*\*\* [wp85] Error 1 > make[1]: Leaving directory ‘/home/mangoh/repos/legato-WiFi/service’ > Makefile:86: recipe for target ‘/home/mangoh/repos/legato-WiFi/service/wifiService.wp85.update’ failed > make: \*\*\* [/home/mangoh/repos/legato-WiFi/service/wifiService.wp85.update] Error 2 Now, I don’t think it would make it much further than this step anyways, because when I go into some C files, such as the one in legato-WiFi(from the github link)/apps/sample/wifiWebAp/wifiWebApComponent/wifiWebAp.c, there is contained: #include legato.h #include interfaces.h From cfgLegato, we can see that the framework path is here:/home/mangoh/legato/packages/legato.framework.17.6.0.wp85-wp750x-201707120855, and if we go a bit deeper, there is a legato.h library at $THAT\_PATH/resources/legato/framework/c/inc/legato.h. But if we replace “legato.h” from the C files with this one, this .h file does not include the function declarations necessary for the wifi drivers… My question is, did I install the legato framework correctly? If so, where could I go about getting the proper source files? Where can I find the proper .h files? If there is any reference material that you have, please point me in the right direction! Thank you in advacne ---
**Author:** ![rauger1](https://avatars.discourse-cdn.com/v4/letter/r/ac91a4/32.png) [@rauger1](https://mangoh.discourse.group/u/rauger1)\ **Post date:** [January 18, 2018, 9:43pm UTC](https://mangoh.discourse.group/t/solved-compiling-wifi-driver/1085/2 "2018-01-18T21:43:20Z")
Is it not possible to build the wifi drivers? ---
**Author:** ![dfrey](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/dfrey/32/303_2.png) [@dfrey](https://mangoh.discourse.group/u/dfrey)\ **Post date:** [January 18, 2018, 9:53pm UTC](https://mangoh.discourse.group/t/solved-compiling-wifi-driver/1085/3 "2018-01-18T21:53:22Z")
If you got legato using repo, then I think that you shouldn’t have to clone [https://github.com/legatoproject/legato-WiFi.git](https://github.com/legatoproject/legato-WiFi.git) manually because repo should have put it under _legato/modules/WiFi/_. Are you trying to use the WiFi IoT card or are you trying to use a different WiFi adapter? ---
**Author:** ![rauger1](https://avatars.discourse-cdn.com/v4/letter/r/ac91a4/32.png) [@rauger1](https://mangoh.discourse.group/u/rauger1)\ **Post date:** [January 18, 2018, 10:20pm UTC](https://mangoh.discourse.group/t/solved-compiling-wifi-driver/1085/4 "2018-01-18T22:20:14Z")
The WiFi IoT card. For clarification, the command line tools work, but in order to implement a callback function I need to be able to compile the native C. And if I go into legato-17.10.0 and try to compile, i get the same issue with the file not found, but the file does exist… : ./modules/WiFi/service/platformAdaptor/ti/pa\_wifi\_client\_ti.c ./modules/WiFi/service/platformAdaptor/ti\_simu/pa\_wifi\_client\_ti.c mangoh@mangoh-virtualbox:~/repos/legato-17.10.0$ there seems to be something up with the makefile? How is it not finding that? ---
**Author:** ![dfrey](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/dfrey/32/303_2.png) [@dfrey](https://mangoh.discourse.group/u/dfrey)\ **Post date:** [January 18, 2018, 11:26pm UTC](https://mangoh.discourse.group/t/solved-compiling-wifi-driver/1085/5 "2018-01-18T23:26:10Z")
Are you trying to write a client that makes use of the `le_wifiClient.api` exposed by the `wifiService` app? ---
**Author:** ![rauger1](https://avatars.discourse-cdn.com/v4/letter/r/ac91a4/32.png) [@rauger1](https://mangoh.discourse.group/u/rauger1)\ **Post date:** [January 19, 2018, 3:04pm UTC](https://mangoh.discourse.group/t/solved-compiling-wifi-driver/1085/6 "2018-01-19T15:04:52Z")
> [@dfrey](#): > > Are you trying to write a client that makes use of the le\_wifiClient.api exposed by the wifiService app? Yes, exactly! Except for le\_wifiAp rather than le\_wifiClient. What I would like to do is write a C program that uses the le\_wifiAP api so that I can start and stop the AP and trigger callback code when new devices are connected. ---
**Author:** ![rauger1](https://avatars.discourse-cdn.com/v4/letter/r/ac91a4/32.png) [@rauger1](https://mangoh.discourse.group/u/rauger1)\ **Post date:** [January 19, 2018, 5:04pm UTC](https://mangoh.discourse.group/t/solved-compiling-wifi-driver/1085/7 "2018-01-19T17:04:45Z")
OK, I can build the apps if I move to the large legato-af github repository like you mentioned, this is great news! But there is another problem - If I install any of the apps WITHOUT modifying them, I get an error[1] about a protocol ID, which is not very descriptive. I assume this is because the legato development environment is 17.10 , while my legato version on the board is 16.10. As far as I can tell, there is no board version for 17.10, is this correct? The new firmware release from Jan 13 is here :[https://source.sierrawireless.com/resources/airprime/software/wpx5xx/wpx5xx-firmware-latest-release/](https://source.sierrawireless.com/resources/airprime/software/wpx5xx/wpx5xx-firmware-latest-release/) , and the version is 16.10.04 So, I downloaded the releases for both 16.10.1 and 16.10.3 and I get an error building both platforms, the same error here: > mangoh@mangoh-virtualbox:~/repos/legato-af-16.10.3$ ./bin/legs > Using legato framework found under ‘/home/mangoh/repos/legato-af-16.10.3/.’ > mangoh@mangoh-virtualbox:~/repos/legato-af-16.10.3$ export PATH=/home/mangoh/repos/legato-af-16.10.3/./bin:/home/mangoh/repos/legato-af-16.10.3/./bin:/home/mangoh/legato/packages/legato.framework.17.6.0.wp85-wp750x-201707120855/resources/legato/bin:/home/mangoh/bin:/home/mangoh/.local/bin:/home/mangoh/bin:/home/mangoh/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/snap/bin:/home/mangoh/legato/packages/legato.framework.17.6.0.wp85-wp750x-201707120855/resources/legato/build/localhost/bin:/home/mangoh/repos/legato-af-16.10.3/./build/localhost/framework/bin:/home/mangoh/repos/legato-af-16.10.3/./build/localhost/framework/bin > mangoh@mangoh-virtualbox:~/repos/legato-af-16.10.3$ source /home/mangoh/repos/legato-af-16.10.3/./framework/tools/scripts/configToolchainDirEnvVars > No toolchain found for target ‘ar7’. > Unable to find compatible cross-build toolchain for target ‘ar7’. > No toolchain found for target ‘ar86’. > Unable to find compatible cross-build toolchain for target ‘ar86’. > mangoh@mangoh-virtualbox:~/repos/legato-af-16.10.3$ exec \<\> /dev/tty > mangoh@mangoh-virtualbox:~/repos/legato-af-16.10.3$ make wp85 > make -f Makefile.hostTools > make[1]: Entering directory ‘/home/mangoh/repos/legato-af-16.10.3’ > Using ninja installed at: /usr/bin/ninja > ln -sf …/build/tools/mk bin/mk > ln -sf mk bin/mkcomp > ln -sf mk bin/mkexe > ln -sf mk bin/mkapp > ln -sf mk bin/mksys > ln -sf …/framework/tools/scripts/findtoolchain …/framework/tools/scripts/instsys …/framework/tools/scripts/settime …/framework/tools/scripts/mkinfo …/framework/tools/scripts/instlegato …/framework/tools/scripts/stoplegato …/framework/tools/scripts/settz …/framework/tools/scripts/createsdk …/framework/tools/scripts/legato-qemu …/framework/tools/scripts/checkpa …/framework/tools/scripts/update-pack …/framework/tools/scripts/security-pack …/framework/tools/scripts/instapp …/framework/tools/scripts/mklegatoimg …/framework/tools/scripts/app …/framework/tools/scripts/av-pack …/framework/tools/scripts/releaselegato …/framework/tools/scripts/sbhelper …/framework/tools/scripts/systocwe …/framework/tools/scripts/configlegatoenv …/framework/tools/scripts/update …/framework/tools/scripts/configtargetssh …/framework/tools/scripts/legs …/framework/tools/scripts/gettargettype …/framework/tools/scripts/update-util …/framework/tools/scripts/configToolchainDirEnvVars …/framework/tools/scripts/simu …/framework/tools/scripts/fwupdate …/framework/tools/scripts/setname …/framework/tools/scripts/mkdoc …/framework/tools/scripts/startlegato …/framework/tools/scripts/shlib bin/ > ln -sf …/framework/tools/ifgen/ifgen bin/ > ninja -f /home/mangoh/repos/legato-af-16.10.3/build/tools/build.ninja > ninja: no work to do. > make[1]: Leaving directory ‘/home/mangoh/repos/legato-af-16.10.3’ > **‘platformAdaptor’ directory is missing, which means these Legato sources have not been downloaded properly.** > Please refer to [GitHub - legatoproject/legato-af: Legato Application Framework](https://github.com/legatoproject/legato-af#clone-from-github) > Makefile:174: recipe for target ‘platformAdaptor’ failed > make: \*\*\* [platformAdaptor] Error 1 > mangoh@mangoh-virtualbox:~/repos/legato-af-16.10.3$ So, at this point I’m pretty lost. legato-17 will build, but when updated to the device, the app crashes. And for versions earlier than this, I can’t build. What is the next step? Thanks for your help! Error[1] > Jan 19 16:25:25 swi-mdm9x15 user.err Legato: =ERR= | serviceDirectory[472]/serviceDirectory\_exe T=main | serviceDirectory.c DispatchToServer() 713 | Client (uid 0 ‘root’, pid 1894) disagrees with server (uid 0 ‘root’, pid 534) on protocol ID of service 'wifiApTest.wifiApT > Jan 19 16:25:25 swi-mdm9x15 user.emerg Legato: _EMR_ | _UNKNOWN_[1894]/framework T=main | LE\_FILENAME ReceiveSessionOpenResponse() 684 | Unexpected server response: -6 (LE\_FAULT). > Jan 19 16:25:26 swi-mdm9x15 user.info Legato: INFO | supervisor[468]/supervisor T=main | proc.c proc\_SigChildHandler() 1942 | Process ‘wifiApTest’ (PID: 1894) has exited with exit code 1. > Jan 19 16:25:26 swi-mdm9x15 user.info Legato: INFO | supervisor[468]/supervisor T=main | proc.c GetFaultAction() 1744 | No fault action specified for process ‘wifiApTest’. Assuming ‘ignore’. > Jan 19 16:25:26 swi-mdm9x15 user.warn Legato: -WRN- | \_appStopClient[1895]/framework T=main | LE\_FILENAME CreateSocket() 550 | Socket opened as standard i/o file descriptor 2! > Jan 19 16:25:26 swi-mdm9x15 user.warn Legato: -WRN- | supervisor[468]/supervisor T=main | app.c app\_SigChildHandler() 3221 | Process ‘wifiApTest’ in app ‘wifiApTest’ faulted: Ignored. > Jan 19 16:25:26 swi-mdm9x15 user.info Legato: INFO | supervisor[468]/supervisor T=main | apps.c DeactivateAppContainer() 340 | Application ‘wifiApTest’ has stopped. ---
**Author:** ![dfrey](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/dfrey/32/303_2.png) [@dfrey](https://mangoh.discourse.group/u/dfrey)\ **Post date:** [January 19, 2018, 6:05pm UTC](https://mangoh.discourse.group/t/solved-compiling-wifi-driver/1085/8 "2018-01-19T18:05:46Z")
I recommend upgrading your Legato on your target to 17.11.0 (and 18.01.0 when it is released). Although this isn’t a configuration “officially” supported by the WP team, you will have a much better experience than trying to stick with 16.10.3. ---
**Author:** ![rauger1](https://avatars.discourse-cdn.com/v4/letter/r/ac91a4/32.png) [@rauger1](https://mangoh.discourse.group/u/rauger1)\ **Post date:** [January 22, 2018, 6:53pm UTC](https://mangoh.discourse.group/t/solved-compiling-wifi-driver/1085/9 "2018-01-22T18:53:47Z")
@dfrey Thanks for your help, upgrading worked !