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**paul-** · 2020-11-14, 18:13

uhubctl posted.

**slartibartfast** · 2020-11-14, 21:27

Originally posted by paul- View Post

uhubctl posted.

Thanks for posting it Paul. I was about to post that I couldn't get it working on my Pi 3B but it turns out that the info posted here
https://github.com/mvp/uhubctl#raspberry-pi-b2b3b
is incorrect. It states that all the USB ports on the Pi3B are linked together and controlled by Port 2. In fact they are controlled separately and turning off port 2 does not turn off ports 2-5. Turning off port 4 works for me.

**slartibartfast** · 2020-11-14, 21:49

Originally posted by slartibartfast View Post

Thanks for posting it Paul. I was about to post that I couldn't get it working on my Pi 3B but it turns out that the info posted here
https://github.com/mvp/uhubctl#raspberry-pi-b2b3b
is incorrect. It states that all the USB ports on the Pi3B are linked together and controlled by Port 2. In fact they are controlled separately and turning off port 2 does not turn off ports 2-5. Turning off port 4 works for me.

Hmm my commands work when I ssh into the pCP but not from the script. I am putting
-S /home/tc/usb-power-on-off.sh
in Various Options on the Squeezelite settings page. My script file is

Code:

#!/bin/sh
#----------------------------------------------------------------------------------------
# Script for turning RPi3 USB output on/off when Squeezelite player is turned on/off.
# This script requires that extension uhubctl.tcz is installed.
# Enter the path to this "Power On/Off Script" on the pCP Squeezelite Settings page.
# https://github.com/mvp/uhubctl#raspberry-pi-b2b3b
#----------------------------------------------------------------------------------------
# squeezelite -S /home/tc/usb-power-on-off.sh
# 
# squeezelite sets $1 to:
#	0: off
#	1: on
#----------------------------------------------------------------------------------------

case $1 in
    0) uhubctl -l 1-1 -p 4 -a 0 >/dev/null 2>&1 ;;
    1) uhubctl -l 1-1 -p 4 -a 1 >/dev/null 2>&1 ;;
esac

Any idea what I am doing wrong?

**paul-** · 2020-11-14, 22:33

Likely need to reference the full path to the binary.

/usr/local/sbin/uhubctl

**slartibartfast** · 2020-11-14, 22:35

Originally posted by sisiko View Post

Following the cited thread, I created the following script file:

Code:

#!/bin/sh
#----------------------------------------------------------------------------------------
# Script for turning RPi4 USB output on/off when Squeezelite player is turned on/off.
# This script requires that extension uhubctl.tcz is installed.
# Enter the path to this "Power On/Off Script" on the pCP Squeezelite Settings page.
# [url]https://github.com/mvp/uhubctl#raspberry-pi-4b[/url]
#----------------------------------------------------------------------------------------
# squeezelite -S /home/tc/usb-power-on-off.sh
# 
# squeezelite sets $1 to:
#	0: off
#	1: on
#	2: initialising
#----------------------------------------------------------------------------------------

case $1 in
    0) uhubctl -l 2 -a 0 >/dev/null 2>&1 ;;
    1) uhubctl -l 2 -a 1 >/dev/null 2>&1 ;;
    2) uhubctl -l 2 -a 1 >/dev/null 2>&1 ;;
esac

also copied it in the folder /home/tc and linked it in the pCP Squeezelite Settings page under "Power On/Off Script".

Here is what it does for me:

"Play" powers up my speakers and plays music.
"Pause" pauses the music and leads to my speakers being shut down.

"Power on/off" the player in LMS does not reliably lead to my speakers being power on/off.

Using the "uhubctl -l 2 -a 0 >/dev/null 2>&1" "/ uhubctl -l 2 -a 1 >/dev/null 2>&1" command loged in my piCorePlayer via SSH always works as expected.

I am fine with "Play/Pause" causing my speakers to turn on/off but I expected this solution to work with "Power on/off" in LMS.
"2: initialising": do I really need that line in my script or can I leave it out?

Hi sisiko, I have modified your script to work with my Pi3 but while the power on/off commands work via an ssh connection to pCP I cannot seem to get the script to do anything. Any ideas how to troubleshoot this?

**slartibartfast** · 2020-11-14, 22:43

Originally posted by paul- View Post

Likely need to reference the full path to the binary.

/usr/local/sbin/uhubctl

I tried

Code:

#!/bin/sh
#----------------------------------------------------------------------------------------
# Script for turning RPi3 USB output on/off when Squeezelite player is turned on/off.
# This script requires that extension uhubctl.tcz is installed.
# Enter the path to this "Power On/Off Script" on the pCP Squeezelite Settings page.
# https://github.com/mvp/uhubctl#raspberry-pi-b2b3b
#----------------------------------------------------------------------------------------
# squeezelite -S /home/tc/usb-power-on-off.sh
# 
# squeezelite sets $1 to:
#	0: off
#	1: on
#----------------------------------------------------------------------------------------

case $1 in
    0) /usr/local/sbin/uhubctl -l 1-1 -p 4 -a 0 >/dev/null 2>&1 ;;
    1) /usr/local/sbin/uhubctl -l 1-1 -p 4 -a 1 >/dev/null 2>&1 ;;
esac

with no luck. How can I tell the state of squeezelite ($1)?

**slartibartfast** · 2020-11-14, 23:06

Originally posted by paul- View Post

Likely need to reference the full path to the binary.

/usr/local/sbin/uhubctl

I also tried the built in "powerscript.sh" which sends the $1 state to an ssh terminal and that doesn't work either. Am I wrong in expecting that toggling the power of piCorePlayer in Material skin or the Default skin should change the state of $1 and display it in the terminal?

**bpa** · 2020-11-14, 23:36

Originally posted by slartibartfast View Post

I also tried the built in "powerscript.sh" which sends the $1 state to an ssh terminal and that doesn't work either. Am I wrong in expecting that toggling the power of piCorePlayer in Material skin or the Default skin should change the state of $1 and display it in the terminal?

Just in case the arg num is wrong you should dump all args values into a file - something like

echo "All Arguments values:" [email protected] >/tmp/allargs.txt

**slartibartfast** · 2020-11-15, 00:24

Originally posted by bpa View Post

Just in case the arg num is wrong you should dump all args values into a file - something like

echo "All Arguments values:" [email protected] >/tmp/allargs.txt

Do you mean edit the script file or is there another way to do it?

Sent from my Pixel 3a using Tapatalk

**slartibartfast** · 2020-11-15, 00:36

Originally posted by bpa View Post

Just in case the arg num is wrong you should dump all args values into a file - something like

echo "All Arguments values:" [email protected] >/tmp/allargs.txt

I tried running that at the command line and it doesn't list any arguments in the file. How do I get it to dump the arg values?

Sent from my Pixel 3a using Tapatalk

**bpa** · 2020-11-15, 12:52

My suggestion is in the script.

The following is my version which just creates lots of output to shows which parts of script are executed.
Squeezelite V1.9.7-1283 was tested on a Rasbian Buster
Squeezelite is standard Ralphy and has GPIO build option.
Run from command line with "-S /home/pi/myscript.sh"

Code:

#!/bin/sh
#----------------------------------------------------------------------------------------
# Script for turning RPi3 USB output on/off when Squeezelite player is turned on/off.
# This script requires that extension uhubctl.tcz is installed.
# Enter the path to this "Power On/Off Script" on the pCP Squeezelite Settings page.
# https://github.com/mvp/uhubctl#raspberry-pi-b2b3b
#----------------------------------------------------------------------------------------
# squeezelite -S /home/tc/usb-power-on-off.sh
# 
# squeezelite sets $1 to:
#	0: off
#	1: on
#----------------------------------------------------------------------------------------
NOW=$(date +"%m-%d-%Y %T")
echo "---  $NOW ---" >>/tmp/powerlog.txt
echo "Args: " "[email protected]" >>/tmp/powerlog.txt
case $1 in
    0) echo "Arg dollar 1 value 0 " >>/tmp/powerlog.txt ;;
    1) echo "Arg dollar 2 value 1 " >>/tmp/powerlog.txt ;;
esac

echo "---- End run ---- " >>/tmp/powerlog.txt

Toggling power button on WebUI for player

Code:

---  11-15-2020 11:49:12 ---
Args:  0
Arg dollar 1 value 0 
---- End run ---- 
---  11-15-2020 11:49:12 ---
Args:  1
Arg dollar 2 value 1 
---- End run ---- 
---  11-15-2020 11:49:13 ---
Args:  0
Arg dollar 1 value 0 
---- End run ---- 
---  11-15-2020 11:49:13 ---
Args:  1
Arg dollar 2 value 1 
---- End run ----

**slartibartfast** · 2020-11-15, 15:35

Originally posted by bpa View Post

My suggestion is in the script.

The following is my version which just creates lots of output to shows which parts of script are executed.
Squeezelite V1.9.7-1283 was tested on a Rasbian Buster
Squeezelite is standard Ralphy and has GPIO build option.
Run from command line with "-S /home/pi/myscript.sh"

Code:

#!/bin/sh
#----------------------------------------------------------------------------------------
# Script for turning RPi3 USB output on/off when Squeezelite player is turned on/off.
# This script requires that extension uhubctl.tcz is installed.
# Enter the path to this "Power On/Off Script" on the pCP Squeezelite Settings page.
# https://github.com/mvp/uhubctl#raspberry-pi-b2b3b
#----------------------------------------------------------------------------------------
# squeezelite -S /home/tc/usb-power-on-off.sh
# 
# squeezelite sets $1 to:
#	0: off
#	1: on
#----------------------------------------------------------------------------------------
NOW=$(date +"%m-%d-%Y %T")
echo "---  $NOW ---" >>/tmp/powerlog.txt
echo "Args: " "[email protected]" >>/tmp/powerlog.txt
case $1 in
    0) echo "Arg dollar 1 value 0 " >>/tmp/powerlog.txt ;;
    1) echo "Arg dollar 2 value 1 " >>/tmp/powerlog.txt ;;
esac

echo "---- End run ---- " >>/tmp/powerlog.txt

Toggling power button on WebUI for player

Code:

---  11-15-2020 11:49:12 ---
Args:  0
Arg dollar 1 value 0 
---- End run ---- 
---  11-15-2020 11:49:12 ---
Args:  1
Arg dollar 2 value 1 
---- End run ---- 
---  11-15-2020 11:49:13 ---
Args:  0
Arg dollar 1 value 0 
---- End run ---- 
---  11-15-2020 11:49:13 ---
Args:  1
Arg dollar 2 value 1 
---- End run ----

I am using squeezelite v1.97-1282-pCP
Running -S /home/tc/myscript.sh doesn't work from command line. I see "-sh: -S: not found"
Adding it as a script in pCP also doesn't seem to do anything. Maybe my scripts aren't running for some reason.

**bpa** · 2020-11-15, 15:41

Originally posted by slartibartfast View Post

I am using squeezelite v1.97-1282-pCP
Running -S /home/tc/myscript.sh doesn't work from command line. I see "-sh: -S: not found"
Adding it as a script in pCP also doesn't seem to do anything. Maybe my scripts aren't running for some reason.

You don't show your command line

The first line indicates which shell to use. IIRC pcp doesn't have a shell it uses busybox - so there may be no "/bin/sh"

There is a pcp extension called bash.tcz whic may provide "/bin/bash "which may also then create a link to "/bin/sh"

For example if I change the first line on my system to "#!/bin/badshell" I get the following message

Code:

sh:  1:  /home/pi/myscript.sh:  not found

**slartibartfast** · 2020-11-15, 16:03

Originally posted by bpa View Post

You don't show your command line

The first line indicates which shell to use. IIRC pcp doesn't have a shell it uses busybox - so there may be no "/usr/sh"

There is a pcp extension called bash.tcz whic may provide "/usr/bash "which may also then create a link to "/usr/sh"

For example if I change the first line on my system to "!/usr/badshell" I get the following message

Code:

sh:  1:  /home/pi/myscript.sh:  not found

I found a forum post saying that pCP comes with sh. Is that a bash alternative?

Sent from my Pixel 3a using Tapatalk

**slartibartfast** · 2020-11-15, 16:07

Originally posted by bpa View Post

You don't show your command line

The first line indicates which shell to use. IIRC pcp doesn't have a shell it uses busybox - so there may be no "/usr/sh"

There is a pcp extension called bash.tcz whic may provide "/usr/bash "which may also then create a link to "/usr/sh"

For example if I change the first line on my system to "!/usr/badshell" I get the following message

Code:

sh:  1:  /home/pi/myscript.sh:  not found

If I run
/home/tc/my script.sh
without the -S
I get
/home/tc/my script.sh: line 17: syntax error: unexpected word (expecting "in")

Sent from my Pixel 3a using Tapatalk

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[piCorePlayer] Turn off USB output when turning off player?

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