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  1. Hi all, I have an application running on an orange pi pc plus 2 over the emmc 8gb memory. Everything is in there (os, db sw) and what it does is acquiring data from some sensors and then pushing it over mqtt to a server. Now, due to frequent internet connection issues, the board is able to store up to ~ 1 month of data in a local db but this means quite a lot of writes per seconds (plus all the logs). I would like to have an idea of how much the emmc can keep up with this rates and thus I am trying to understand how to calculate the life span in years (hopefully no
  2. Just adding some more info for this issue that is haunting me. After seeing that "rmmod" doesn't provide me any help so far, I tried to directly bind and unbind bus drivers (both usb hub and ftdio) without any success. The only thing worth mentioning is that I got this error with one of the hub: [221495.711378] hub 8-0:1.0: USB hub found [221495.711399] hub 8-0:1.0: config failed, can't read hub descriptor (err -22)
  3. Hi all, I am using an Orange Pi PC PLUS2 with everything in the emmc for controlling another device through a serial connection (rs485) with a serial converter using FTDI chips. I am using docker containers to embed my application and easily deploy/share it. using uname -a gives me: Linux host-test 4.14.15-sunxi #28 SMP Mon Jan 29 07:24:48 CET 2018 armv7l GNU/Linux The problem is that randomly I get the following error: [135431.500807] ftdi_sio ttyUSB0: ftdi_set_termios urb failed to set baudrate [137213.011801] ftdi_sio ttyUSB0: ftdi_set_t
  4. Thanks for the quick replies! Irreversible HW modifications are not a big issue in my case...I just need to understand what we are talking about and how to disable SD booting. Could you expand a bit on this? How would it work and what should I do? Yeah, I know that unsoldering is not a huge move, but it is somehow more bothering and problematic to standard users compared to SW measures. I am really trying to add as many layer of "boring protections" as possible...any idea is very welcome! Thanks for the boot info, it helps underst
  5. Hi all, I recently purchased an orange pi after developing on the raspberry pi (just for convenience). I got it mainly because the integrated memory could be a real asset both because SD are faulty when making lots of memory accesses and emmc can provide a nice layer of code protection when giving the board to somebody else. I set-up everything without issue and I used the nand-sata-install to move everything to worked like a charm. I then placed all my proprietary code on emmc and executed without issues. Problem is, I can obviously still insert an SD card an