**** BEGIN LOGGING AT Mon Jul 09 03:00:02 2018 Jul 09 13:13:39 elho Jul 09 13:14:51 is it possible for a beaglebone black connected to a laptop via usb and ethernet simultaneously to damage the laptop's ethernet port? Jul 09 13:23:16 how do i install Ubuntu on BBB? Jul 09 13:40:55 beagleboner: lol what? how would you imagine such a thing? Jul 09 13:57:04 zmatt because my laptop's ethernet port is no longer funtional after connecting the beaglebone that way. Jul 09 14:04:01 beagleboner: it is simply not possible for the beaglebone to damage an ethernet port, especially since ethernet ports use an isolation transformer, hence no DC current can flow between devices via ethernet Jul 09 14:05:16 hmm. well the laptop's ethernet port is not detectable under linux or (ugh!) win10 Jul 09 14:06:41 the network interface disappeared from win10's device manager overnight. Jul 09 14:07:04 (after a shutdown/reboot) Jul 09 14:07:41 that sounds annoying, but it seems implausible the beaglebone had anything to do with it Jul 09 14:09:28 it sounds implausible from the outside, but it was the only configuration change to the setup. so from my point of view it seems rather plausible that power-cycling caused a surge in the beagle or something. i am not an EE. Jul 09 14:10:50 i had also speculated that it could be a grounding issue. Jul 09 14:16:51 there's quite likely an isolation transformer on the ethernet port which would die first, and that would not make the port disappear in windows or linux Jul 09 14:18:34 what if the isolation transformer on the beaglebone failed? Jul 09 14:19:17 oh thinkfat left Jul 09 14:22:50 beagleboner: your laptop's ethernet port has one too, and even if it weren't then there's still no way it could plausibly damage your laptop Jul 09 14:23:03 *if it didn't Jul 09 14:23:50 plausibly _ne_ possibly Jul 09 14:26:46 hah! the ethernet just reappeared! ok thanks for the info it was helpful. Jul 09 14:26:52 -.- Jul 09 14:36:23 is there any problem if i connect a bbb to both a 5vdc power supply and the laptop's usb port simultaneously? Jul 09 14:50:53 doomâ„¢! Jul 09 14:51:40 iddqd Jul 09 14:51:55 idkfa Jul 09 15:07:12 beagleboner: no Jul 09 15:08:47 I bought two pocketBeagle boards and I guess one of them is faulty and I made an issue on GitHub could you please check it and let me know if you can help? Jul 09 15:08:54 https://github.com/beagleboard/pocketbeagle/issues/19 Jul 09 15:09:28 I documented all the details in the GitHub link Jul 09 15:55:36 zmatt: are you still here? Jul 09 16:59:12 Hi all - how can a Beaglebone know if it is plugged in to a computer via its mini USB port? Jul 09 17:01:03 drivers! Jul 09 17:02:34 set, is 'drivers!' in response to my question? Jul 09 17:03:46 Cirrus: yes. Jul 09 17:04:07 Are you using Win or Linux for your main computer/desktop? Jul 09 17:05:01 Sometimes, the Linux distros are hit or miss w/ drivers. Win 10 just knows it. Debian and Ubuntu knows it, too! Jul 09 17:12:35 Oh, I meant I want the Beaglebone to be able to detect Jul 09 17:12:56 The Beaglebone has to know if it is plugged in to a computer or not (its mini USB port to the computer's USB port) Jul 09 17:12:59 there is surely some udev event you can look for Jul 09 17:13:06 yeah it definitely knows Jul 09 17:13:22 RIght... I just don't know what to look for to determine that Jul 09 17:13:40 try using udevadm monitor -u to monitor for udev events Jul 09 17:13:43 while plugging in Jul 09 17:13:50 udevadm monitor ... Jul 09 17:13:57 ah, zmatt beats me :) Jul 09 17:14:04 @zmatt - the BB may be plugged in while it's off Jul 09 17:14:16 It needs to be able to check if it's plugged in at a specific time Jul 09 17:14:31 Also, it's running capes so the USB won't be able to power it Jul 09 17:14:35 when you turn it on there should also be an event Jul 09 17:14:52 based on that you can craft a udev rule that kicks off a script or whatnot Jul 09 17:15:01 Anyone ever had a problem with EGLFS and QT on bbb Jul 09 17:15:07 (on plug or on power-on of the PC) Jul 09 17:15:40 Cirrus_: so? Jul 09 17:16:19 Cirrus_: using udevadm monitor is still the easiest way to determine which devices or properties may indicate the usb connection Jul 09 17:16:31 @zmatt I may have misunderstood - if I install udev on BB and look at the udevadm monitor, it'll show past events including if the BB has been plugged in to a computer? Jul 09 17:16:53 no Jul 09 17:17:02 (also, udev is part of the system) Jul 09 17:17:12 udev is likely already installed and permanently running Jul 09 17:18:10 I wasn't saying you should use udevadm monitor as a way to determine whether you're connected or not, I was saying you should use it to determine how you can tell whether you're connected or not Jul 09 17:18:16 ehh Jul 09 17:18:20 that sentence failed Jul 09 17:18:41 oh i see. I ran `udevadm monitor` and it works Jul 09 17:18:49 ahh ok Jul 09 17:18:56 I'll look into it Jul 09 17:18:59 thanks Jul 09 17:19:14 if you want specific things to happen when a device is present, the right way is probably by using an udev rule Jul 09 17:19:28 but udevadm monitor is one of the easy ways of finding the information you need to create such a rule Jul 09 19:25:57 what makes the most sense for the "compatible" device tree entry for the eqep? ti,dra746-eqep? Jul 09 19:27:27 ti,eqep Jul 09 19:28:01 there's nothing dra7-specific about it, let alone something as weirdly specific as "dra746" Jul 09 19:30:55 ok, the am33xx.dtsi has ti,am33{xx,52}-{ecap,ehrpwm} entries dra7.dtsi has ti,{dra746,am3352}-{ecap,ehrpwm Jul 09 19:31:07 so i was a little confused. Jul 09 19:31:53 I'm on the X15 Jul 09 19:40:26 are you asking what makes the most sense, of what you need to fill in to make it work? Jul 09 19:40:49 *or what... Jul 09 19:41:05 since those are two very different questions :P Jul 09 19:42:38 actually dra7 also uses "ti,am3352-ehrpwm" Jul 09 19:42:54 ("ti,dra746-ehrpwm" is not recognized by the kernel driver) Jul 09 19:43:57 the eqep driver only recognizes "ti,am33xx-eqep" Jul 09 19:44:35 I added ti,eqep to tieqep.c and crossing my fingers. Jul 09 19:45:34 while I'd fully support doing so, if you just want to use the eqep driver on the x15 you don't need to modify the kernel at all, just use compatible = "ti,am33xx-eqep"; in the dts Jul 09 19:47:47 ok, i'll try to put in the pinmuxes and just do the device tree Jul 09 21:48:41 Any active users in here? Jul 09 22:51:28 I work out twice a week **** ENDING LOGGING AT Tue Jul 10 03:00:01 2018