We have upgraded the community system as part of the upgrade a password reset is required for all users before login in.

Editing/Updating the 'distfeeds.conf' file through Terminal.



  • Would creating a script such as this be done through the Code Editor, or still in the Terminal? I'm suspecting the former, but I want to be careful with proceeding.



  • @Scruffy I think I saw the code editor the first time I setup my very first Omega, thereafter I've never used it. Simple scripts I would just write using vi in the console, or otherwise I would use either netbeans, Jetbrains IDEA or TextPad then use FileZilla to scp it to the deivce.



  • My mistake. Hotplug is present (you can view the directories 'File Explorer' style with Code Editor), but it doesn't come up when I search for it.

    Also forgot to use opkg update after uncommenting some of the distfeeds.conf lines. It still doesn't seem to have made a difference for either udevd or hotplug, which are the ones enabled.

    I am sorry for the pestering on this. I'm trying to do it to fill out a small portfolio for graduate application, and nobody in my department seems to use Onion technology, so I can't just get into a call with them to troubleshoot.



  • @Scruffy hotplug is installed on the standard firmware, it is part of OpenWrt 18.06 upon which the Omega firmware is built, it is not something you need to install.

    I'm not clear on what you are expecting to find on the file system, /etc/hotplug.d contains all the scripts and you can add your own to respond to the available events.



  • How I'm interpreting this is that, I can try putting in a script to create 'udevd' as a command to use.



  • @Scruffy No. udevd is a linux thing and OpenWrt is a little behind. Hotplug is the earlier concept upon which udev is based and what we use on OpenWrt/Omega.

    So forget about udev on Omega or OpenWrt generally and go back to the basics of what you wish to achieve. My earlier post addressed one of my requirements that I wanted to run a setup script the first time one of my Omega devices connects to the user's wifi. Basically when I build my devices they have the then current version of my custom firmware installed, but I am always updating and improving so I want the device to run my setup shell script the first time the user unboxes my device and connects it to their home wifi.

    I achieve this by using a hotplug script that runs the first time wwan device come up. If you look at the standard scripts under your /etc/hotplug.d you can see that the Omega uses hotplug to respond to a range of device functions/state changes.

    For completeness I should mention there is a libudev available on openwrt, however I found it to be pretty much a shell of Linux udev functionality, save your time it seemed to be more of a stub to assist porting apps than a serious implementation.



  • Just beware that vi is at the center of 'evil'.



  • Okay, my misunderstanding. Thanks for clarifying.

    The project I'm trying to accomplish is the old Bluetooth Speaker from the first project book, so I can pair that with a Sharc DSP board, so I can practice sending an audio signal, while modifying it at the same time. At the moment, the next step, where the 'udevd' was coming from, is creating a pulseaudio daemon that will run in the background until called upon.

    I'd have to imagine that the command line would have other commands/ways of doing this without the need for creating custom scripts for reference. I'll take a look back at the library, just in case.



  • @William Scott:
    To me, vi, git, shell etc. are testing grounds. If I can not get those right.. I can never get my programming right..:)



  • @tjoseph1 I'm with you, hence the sarcastic humor. Keep hammering at it and you'll get it! When you need help, we're here for you, then before you know it, you're one of us telling someone about O2+ power requirements or vi is at the center of 'evil'. Dig?

    take care!!
    Bill



  • @William Scott:
    <<
    --before you know it, you're one of us telling someone about O2+ power requirements or vi..
    <<
    Was there any mistake ? Can you please explain ?



  • @tjoseph1 No mistakes I'm aware of or opinionated about. Really seems to me there have been a number of problems on the forum recently that seem to smell like power supply problems. Keep on keepin' on!

    --Bill



  • @William Scott:
    <<
    ..there have been a number of problems on the forum recently that seem to smell like power supply problems
    <<
    I too saw the recommendations to check the power.

    A powered USB hub with a stable external PS would be ideal.

    The moment a USB drive is connected to the dock, power draw goes to 18mA-20mA from the usual 10mA-13mA, in my observation.

    Thanks..



  • @tjoseph1 Good work!

    --Bill



  • @William Scott :
    <<
    Good work!
    <<
    I guess that is for missing one zero each, in everyplace ..! šŸ™‚



  • @tjoseph1 Be careful not to assume just because you use a USB hub with an external power supply that you can power an Omega2 on each USB port. We tested a number these devices about a year ago (you can search for my post on here), most cannot power more than 2 or 3 devices at once. One that I am using on my desk right now can run 4 at the same time but I have to boot each device sequentially since the power requirement when starting wifi will make each of them hang if booted at the same time. I have another that has 12 ports, powered on 2 separate circuits, I can run 3 Omega on the thing, no matter which ports I have them connected. If I power another Omega2, all of the devices will hang when the 4th device starts wifi. Sometimes they will recover but in most cases they do not and need to be rebooted.



  • @crispyoz :
    Very informative.. thanks, I will keep the advise in mind..

    The plan is to have custom PCB, with 4 devices (6xGPIO, 2xUART, SPI and I2C - all are 3v3 compatible) plus Li-Ion charger/booster with cutoff & 3v3 regulator. The total draw is 400mA+ for the devices, which is now fed from another 3v3 regulator connected to the same USB hub where with Omega2 dock is connected.

    Based on the experience you shared, a mechanism to delay-start the devices "may be a must..!", I guess?
    Thanks..



  • @tjoseph1 I'm a software engineer so maybe one of the electronics gurus will pipe up on the best method. To my uneducated mind, it seems that all the hubs we tested didn't have enough juice to power each unit at peak consumption, which in my experience is when the wifi system comes up. I'm not sure what good any of the USB hubs with 10 and 12 ports actually are, if you plugged in multiple phones to charge them it'd take a month of Sundays.



  • @crispyoz :
    I am sorry, that I didn't mention "Powered USB Hub".. Only data goes to
    the computer. The supply to end devices is derived from an external PSU, connected to hub's power socket. I am using a 3A PS to feed power.

    If none of the hubs didn't have enough juice, that is scary. Have you happen to notice the peak consumption at the time of WiFi initialization by any chance?



  • @tjoseph1 I've not used an Omega2+ for a while, I am mainly using Omega2S+ on my custom board however Onion recommend 5v 2A, I am generally reading a maximum of 5v 2.1A

    But I did understand you were referring to USB hub with an external power supply, my experiences I referred to above were with USB hubs using external power supplies, the Omega is using the USB hub for both power and data.



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