# Eigenharp / MEC query **URL:** \ **Category:** Patches\ **Created:** [April 11, 2019, 10:03am UTC](https://forum.critterandguitari.com/t/eigenharp-mec-query/4164 "2019-04-11T10:03:06Z")\ **Posts on this page:** 19\ **Page:** 2
**Author:** ![thetechnobear](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.critterandguitari.com/thetechnobear/32/42_2.png) [@thetechnobear](https://forum.critterandguitari.com/u/thetechnobear)\ **Post date:** [January 8, 2020, 12:11pm UTC](https://forum.critterandguitari.com/t/eigenharp-mec-query/4164/21 "2020-01-08T12:11:40Z")
I’d need to check logs, but I suspect the kernel log errors might be red herrings. You could use dmesg to see if there is anything usb related. The usb error could be a permissions issue. Can you check the contents of /etc/udev/rules.d There should be a file for the eigenharps , one that was also reloaded via udevadm at install time. An alternative to see if this permissions are the issue is to run mec manually ```auto cd /sdcard/System/MEC sudo ./mec-app picopd.json ``` Use crtl-c to stop it. ---
**Author:** ![pepper](https://avatars.discourse-cdn.com/v4/letter/p/3da27b/32.png) [@pepper](https://forum.critterandguitari.com/u/pepper)\ **Post date:** [January 8, 2020, 2:05pm UTC](https://forum.critterandguitari.com/t/eigenharp-mec-query/4164/22 "2020-01-08T14:05:46Z")
Hi Mark, there are no Eigenharp rules in /etc/udev/rules.d Just to clarify, the “sdcard” only has a Patches folder, no System folder. The System folder is on the Usbdrive for some reason (this is the format I received it in when I purchased. Does this mean it has been moved and possibly the source of the problem? best, P ---
**Author:** ![thetechnobear](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.critterandguitari.com/thetechnobear/32/42_2.png) [@thetechnobear](https://forum.critterandguitari.com/u/thetechnobear)\ **Post date:** [January 8, 2020, 2:22pm UTC](https://forum.critterandguitari.com/t/eigenharp-mec-query/4164/23 "2020-01-08T14:22:31Z")
you sure? im pretty sure it installs one… if not, then drop this in there. > you’ll then need to run ```auto sudo udevadm control --reload-rules ``` did it work if you ran manually as i showed above? generally, you should not be using a USB stick with organelle-m, its unnecessary - transfer things via wifi. if you don’t have the usb stick inserted and you have something in /usbdrive , then something is ‘wrong’ and you should delete the contents of /usbdrive - but not the folder. ---
**Author:** ![pepper](https://avatars.discourse-cdn.com/v4/letter/p/3da27b/32.png) [@pepper](https://forum.critterandguitari.com/u/pepper)\ **Post date:** [January 8, 2020, 2:48pm UTC](https://forum.critterandguitari.com/t/eigenharp-mec-query/4164/24 "2020-01-08T14:48:03Z")
ahh, running Mec from terminal works!. Data streams are there when I press the keys It says its starting the Pico and from the realtime info it looks like it is working. Strange that it is not channeling through Pure Data/ So this is obviously working!. More exploration ---
**Author:** ![pepper](https://avatars.discourse-cdn.com/v4/letter/p/3da27b/32.png) [@pepper](https://forum.critterandguitari.com/u/pepper)\ **Post date:** [January 8, 2020, 2:53pm UTC](https://forum.critterandguitari.com/t/eigenharp-mec-query/4164/25 "2020-01-08T14:53:44Z")
ok, will drop that lot in and re-run and test further Yes I do have a usbdrive plugged in as it contains all my patches from the Organelle 1. I have a lot of sample data (32gb My whole EMUIII library) on there as it wont fit on the sdcard. thanks Mark ---
**Author:** ![pepper](https://avatars.discourse-cdn.com/v4/letter/p/3da27b/32.png) [@pepper](https://forum.critterandguitari.com/u/pepper)\ **Post date:** [January 8, 2020, 2:58pm UTC](https://forum.critterandguitari.com/t/eigenharp-mec-query/4164/26 "2020-01-08T14:58:43Z")
To clarify. I have a usbdrive called “usbdrive” plugged in. This is where I have all my patches and sample data. There is also the sdcard that was in the organelle by default called”sdcard” The sdcard obly has a patches folder in it. ---
**Author:** ![pepper](https://avatars.discourse-cdn.com/v4/letter/p/3da27b/32.png) [@pepper](https://forum.critterandguitari.com/u/pepper)\ **Post date:** [January 8, 2020, 3:42pm UTC](https://forum.critterandguitari.com/t/eigenharp-mec-query/4164/27 "2020-01-08T15:42:09Z")
Success: I have the “Braids MPE” patch running fine from Mec as long as I launch Mec using the terminal but not from organelle. I tried dropping the 69 eigenharp rules into etc/udev/rules but that folder is locked and doesn;t allow any files to be added. getting there. ---
**Author:** ![thetechnobear](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.critterandguitari.com/thetechnobear/32/42_2.png) [@thetechnobear](https://forum.critterandguitari.com/u/thetechnobear)\ **Post date:** [January 8, 2020, 6:22pm UTC](https://forum.critterandguitari.com/t/eigenharp-mec-query/4164/28 "2020-01-08T18:22:02Z")
> [@pepper](#): > > as long as I launch Mec using the terminal but not from organelle. if your using sudo ./mec-app, then its a permission problem, that the udev rule will fix. (not sure why it wasn’t there… perhaps i missed when releasing orac 2, and added it in dev… so it got installed whilst i was testing stuff?) you need to copy using sudo… so something like ```auto sudo cp 69-eigenharp.rules /etc/udev/rules.d ``` usbdrive vs sdcard mec/orac don’t care , they work on either usbdrive or sdcard, but you’ll likely get confused if you use mixture 😉 (as you cannot see the sdcard patches/system, when the usb stick is inserted) if i were you’d i just buy a bigger sdcard , and then put everything on that … sdcard are faster and more reliable… and frees up a usb port for controller/wifi ---
**Author:** ![thetechnobear](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.critterandguitari.com/thetechnobear/32/42_2.png) [@thetechnobear](https://forum.critterandguitari.com/u/thetechnobear)\ **Post date:** [January 9, 2020, 2:21pm UTC](https://forum.critterandguitari.com/t/eigenharp-mec-query/4164/29 "2020-01-09T14:21:10Z")
K, can confirm udev rules I added later… They were not necessary on organelle-1 as it runs everything as root. This may be same issue on your monome 😉 ---
**Author:** ![pepper](https://avatars.discourse-cdn.com/v4/letter/p/3da27b/32.png) [@pepper](https://forum.critterandguitari.com/u/pepper)\ **Post date:** [January 9, 2020, 2:37pm UTC](https://forum.critterandguitari.com/t/eigenharp-mec-query/4164/30 "2020-01-09T14:37:52Z")
Aha, I’m beggining o understand it all a bit better, slow but getting there, thanks Mark for your help, much appreciated, best, P ---
**Author:** ![pepper](https://avatars.discourse-cdn.com/v4/letter/p/3da27b/32.png) [@pepper](https://forum.critterandguitari.com/u/pepper)\ **Post date:** [January 9, 2020, 2:41pm UTC](https://forum.critterandguitari.com/t/eigenharp-mec-query/4164/31 "2020-01-09T14:41:03Z")
ref sdcard. Yes, after your last message I thought that this would be better, so will pursue that to end the confusion and have more ports. Great stuff! ---
**Author:** ![pepper](https://avatars.discourse-cdn.com/v4/letter/p/3da27b/32.png) [@pepper](https://forum.critterandguitari.com/u/pepper)\ **Post date:** [January 12, 2020, 3:16pm UTC](https://forum.critterandguitari.com/t/eigenharp-mec-query/4164/32 "2020-01-12T15:16:26Z")
ref: Monome and serialOSC after all that…it was a broken USB cable! Monome and ARC chatting are now away happily chatting with Organelle-M ---
**Author:** ![teflon3d](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.critterandguitari.com/teflon3d/32/4676_2.png) [@teflon3d](https://forum.critterandguitari.com/u/teflon3d)\ **Post date:** [February 16, 2021, 7:19pm UTC](https://forum.critterandguitari.com/t/eigenharp-mec-query/4164/33 "2021-02-16T19:19:56Z")
> [@thetechnobear](#): > > `sudo cp 69-eigenharp.rules /etc/udev/rules.d ` so how do i do this if I get a read-only file system error? ps found these rules in SD card/System/MEC/ Can I use the rules here somehow? with a version of: sudo udevadm control --reload-rules thanks Folks. ---
**Author:** ![teflon3d](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.critterandguitari.com/teflon3d/32/4676_2.png) [@teflon3d](https://forum.critterandguitari.com/u/teflon3d)\ **Post date:** [February 16, 2021, 7:31pm UTC](https://forum.critterandguitari.com/t/eigenharp-mec-query/4164/34 "2021-02-16T19:31:58Z")
Extra Info: no usb drive, just working off the sdcard. 3 amp 9v power supply to organelle. Get the same errors as Pepper from the console with a pico plugged in. I have not tried running mec from the console yet. thanx ---
**Author:** ![thetechnobear](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.critterandguitari.com/thetechnobear/32/42_2.png) [@thetechnobear](https://forum.critterandguitari.com/u/thetechnobear)\ **Post date:** [February 16, 2021, 7:45pm UTC](https://forum.critterandguitari.com/t/eigenharp-mec-query/4164/35 "2021-02-16T19:45:48Z")
There is a script that remounts the file system ( temporarily) into read write mode. remountrw.sh or similar not at my organelle at the moment, but you’ll find other references to it on this forum 🙂 ---
**Author:** ![pepper](https://avatars.discourse-cdn.com/v4/letter/p/3da27b/32.png) [@pepper](https://forum.critterandguitari.com/u/pepper)\ **Post date:** [February 16, 2021, 7:46pm UTC](https://forum.critterandguitari.com/t/eigenharp-mec-query/4164/36 "2021-02-16T19:46:34Z")
I really gave up on this. I wasted so much time (mine and Technobear’s) that I gave it a rest. It works on my orignal Organelle but its a no go on the M Also the four Pico function keys give the same data out, but anyway. ---
**Author:** ![teflon3d](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.critterandguitari.com/teflon3d/32/4676_2.png) [@teflon3d](https://forum.critterandguitari.com/u/teflon3d)\ **Post date:** [February 16, 2021, 9:57pm UTC](https://forum.critterandguitari.com/t/eigenharp-mec-query/4164/37 "2021-02-16T21:57:56Z")
Thanks very much Mark. Let you know how it goes. ---
**Author:** ![teflon3d](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.critterandguitari.com/teflon3d/32/4676_2.png) [@teflon3d](https://forum.critterandguitari.com/u/teflon3d)\ **Post date:** [February 16, 2021, 11:03pm UTC](https://forum.critterandguitari.com/t/eigenharp-mec-query/4164/38 "2021-02-16T23:03:59Z")
Bless you guys! It worked. At least with picopd.json. Now will it work when I turn the Organelle off? Always something. Thanks again, the answer is there if you dig around with help. O yeah my system is back to read-only with the remount-ro.sh script. Advice well spoken. ---
**Author:** ![pepper](https://avatars.discourse-cdn.com/v4/letter/p/3da27b/32.png) [@pepper](https://forum.critterandguitari.com/u/pepper)\ **Post date:** [February 16, 2021, 11:19pm UTC](https://forum.critterandguitari.com/t/eigenharp-mec-query/4164/39 "2021-02-16T23:19:15Z")
Excellent, good to hear! [Previous page](https://forum.critterandguitari.com/t/eigenharp-mec-query/4164.md?page=1)