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#raspberrypi #yocto Adding delay for initiation / startup of usb connected device #yocto #raspberrypi


markus4dev@...
 

Hi!

 

I am having problems with my raspberry pi3 a+ yocto thud build when connecting a  LTE E3372 modem. Sometimes it works but most of the times the startup of the LTE device interfere with services that are started ending up with blocking the raspberry pi.

 

I want to test to delay the startup of the LTE device with kernel-parameters similar to the following.

 

usb-storage.delay_use=90

 

Is it possible to use the RPI_EXTRA_CONFIG variable to add a few line to config.txt or are there any other ways to delay the initiation of the lte modem? If possible, please attach an example.

 

Thanks,

Markus