Scripts help please

[tmcb82]

Hi I am trying to write a script that runs a command to push my usb into another mode but it doesn't seem to be running at boot... I'm not sure what I am doing wrong?

#!/bin/sh

usb_modeswitch -v 0x1410 -p 0x9020 -u 2
​

This is the script. I put it in /jffs/scripts and made it executable.

/jffs/scripts/u620lmodem startup # u620lmodem
​

I then added the above to the start-services file in the scripts folder.

When I run the usb_modeswitch command from ssh it works perfect but only lasts until the router is rebooted, so I was trying make it automatically apply at boot to make my life a bit easier.

Any ideas would be immensely helpful! Thank you in advance!

 

[dave14305]

Is it a typo in your post? The file is /jffs/scripts/services-start, not start-services.

services-start must also include #!/bin/sh and be executable. You can just put the usb command directly in services-start if you want, without the u620lmodem script.

 

[tmcb82]

Is it a typo in your post? The file is /jffs/scripts/services-start, not start-services.

services-start must also include #!/bin/sh and be executable. You can just put the usb command directly in services-start if you want, without the u620lmodem script.

Ohh sorry, yes it was a typo I used services-start. I actually was able to append it below another script that uses that.

 

[dave14305]

Ohh sorry, yes it was a typo I used services-start. I actually was able to append it below another script that uses that.

Does the other script in services-start run OK on boot?

 

[tmcb82]

Does the other script in services-start run OK on boot?

It does! Which is why I’m scratching my head. Could it be executing too early since it controls a USB modem? Perhaps moving it to post-mount would be better?

Thanks for the help btw

 

[tmcb82]

Does the other script in services-start run OK on boot?

I figured it out! It was running but before the modem incorrectly mounts as a usb drive. So I added “Sleep 3m” before the command to make it wait 3 minutes before running and now it works perfectly.

 

[dave14305]

I figured it out! It was running but before the modem incorrectly mounts as a usb drive. So I added “Sleep 3m” before the command to make it wait 3 minutes before running and now it works perfectly.

So is there a better place to put it to avoid a 3 minute delay? Does post-mount trigger for a USB modem?

 

[tmcb82]

So is there a better place to put it to avoid a 3 minute delay? Does post-mount trigger for a USB modem?

I kept this in services-start:

/jffs/scripts/modem.sh startup # Switch U620L to modem

Then this script:

#!/bin/sh

sleep 3m
usb_modeswitch -v 0x1410 -p 0x9020 -u 2

It works great now. My primary cable internet now fails over to this Verizon Novatel U620L USB modem and back when the primary internet is restored. I also installed "usbutils" from entware.

 

[ColinTaylor]

I kept this in services-start:

/jffs/scripts/modem.sh startup # Switch U620L to modem

I'm not sure why you're passing "startup" as a parameter to your script as the script doesn't use it.

 

[tmcb82]

I'm not sure why you're passing "startup" as a parameter to your script as the script doesn't use it.

It sounds like it might not be needed. I saw it in other scripts and copied it. I’m not a programmer, so I‘m just learning as I go. If I made other mistakes please point them out. I would appreciate it!