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  • [00:00:34] * Topic is 'http://beagleboard.org/chat has a guide on how to ask questions and links to the logs | never ask to ask, just ask | be patient | pastebin a boot log | http://ahsoftware.de/Beaglebone_Black_Boot_explained.svg | http://beagleboard.org/latest-images | http://beagleboard.org/Support/bone101 | direct bonescript/node.js questions to #beagle-bonescript | books: http://bit.ly/bbb-books'
  • [00:00:34] * Set by KotH!~attila@erica.kinali.ch on Wed Jul 15 13:55:07 UTC 2015
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  • [00:00:42] <dhirc> Jonnyw2k: Stick with the cisco!
  • [00:00:43] <rcn-ee> we use to have a bufferbloat patch that helped out, but with the cpsw changes in v4.1.x it had has to be-rewritten..
  • [00:00:51] <rcn-ee> our v3.14.x had that patch..
  • [00:00:54] <Jonnyw2k> dhirc, trying to get access to a vpn
  • [00:01:25] <zmatt> rcn-ee: a what patch?
  • [00:01:47] <dhirc> rcn-ee: was that 2% you were mentioning before for the BBB receiving the packets?
  • [00:01:48] <rcn-ee> Jonnyw2k, pc engines apu + pfsense...
  • [00:03:06] <Jonnyw2k> cool, also cisco's have the worlds loudest fans on them lol
  • [00:03:09] <rcn-ee> zmatt, bufferbloat's are 1/2.. https://github.com/RobertCNelson/bb-kernel/tree/am33x-v4.0/patches/beaglebone/phy
  • [00:03:56] <Jonnyw2k> rcn-ee, Due to cumbersome recycling regulations in the EU we do not sell to end users in EU countries. damnitt
  • [00:04:13] <zmatt> rcn-ee: why not reduce the size of the tx ring is the problem is there?
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  • [00:05:05] <rcn-ee> dhirc, just reversed server/client... bbb when client is 36.3%..
  • [00:05:41] <rcn-ee> Jonnyw2k, which is funny as they are in switzerland...
  • [00:07:02] <Jonnyw2k> rcn-ee, not EU (like Mexico and Canada are in America but not USA)
  • [00:07:08] <dhirc> rcn-ee: Would you agree that something seems 'broken' here? Should not be using that much CPU on either side..
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  • [00:07:57] <rcn-ee> Jonnyw2k, yeah i forgot, it's been a few years since i last crossed the atlantic...
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  • [00:09:12] <rcn-ee> dhirc, more like not optimzed.. for the bbb, we should be able to tweak the buffers for 100Mb... this same ip on the x15 has dual 1Gb connections..
  • [00:09:27] <Jonnyw2k> rcn-ee, https://www.gov.uk/eu-eea
  • [00:09:38] <Jonnyw2k> it's a strange relationship lol
  • [00:09:44] * kilroi is now known as kilroi_off
  • [00:10:03] <rcn-ee> i have friends in norway, they have a similar fun relationship with eu..
  • [00:11:07] * kilroi_off is now known as kilroi
  • [00:11:58] <dhirc> rcn-ee: Any ideas on what can be done to optimise this? Can you explain how tweaking the buffers may improve this?
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  • [00:12:50] <rcn-ee> dhirc, take a look at patches 1/2 here: https://github.com/RobertCNelson/bb-kernel/tree/am33x-v4.0/patches/beaglebone/phy
  • [00:13:11] <rcn-ee> they need to be modififed for the ti changes in 4.1.x
  • [00:13:17] <zmatt> or he can try the 4.0 kernel
  • [00:13:45] <rcn-ee> that tooll... give me a few minutes... ;) these test bbb's have the slowest/cheapest microSD...
  • [00:14:19] <dhirc> rcn-ee: So can I just confirm that you see 2% on 4.1.x and on what kernel do you see 13%??
  • [00:14:40] <rcn-ee> dhirc, that was the top of the 4.1.x-ti branch...
  • [00:14:48] <rcn-ee> right now i'm installing linux-image-4.0.4-bone4
  • [00:14:59] <rcn-ee> and i hava bone with rt: linux-image-4.0.8-bone-rt-r8
  • [00:15:34] <dhirc> rcn-ee: That was another unrelated query I have, sometimes when I run "ls" on the BBB it seems to stall for a second or two before printing the directory contents. Have you seen similar behaviour and if so is it related to the sdcard driver? Have not bothered investigating as yet..
  • [00:16:07] <rcn-ee> sounds like a stall in the mmc edma...
  • [00:16:46] <rcn-ee> unlike previous omap mmc ip's that is one relies a lot on the edma...
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  • [00:17:16] <dhirc> rcn-ee: Thanks a lot for taking the time to do that, this has been really helpful
  • [00:18:20] <rcn-ee> oh and v4.1.x-ti has preempt enabled by default too...
  • [00:18:37] <rcn-ee> CONFIG_PREEMPT=y
  • [00:19:35] <rcn-ee> v4.0.x-bone has CONFIG_PREEMPT_VOLUNTARY=y
  • [00:20:35] <rcn-ee> with v4.0.x-bone, iperf is 6%...
  • [00:21:10] <dhirc> What does the VOLUNTARY mean?
  • [00:22:09] <zmatt> it's basically the middle setting of the latency/efficiency slider in non-RT kernels
  • [00:22:22] <dhirc> OK thanks
  • [00:22:31] <zmatt> (CONFIG_PREEMPT being the low-latency side of the slider, at least until RT came along)
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  • [00:43:32] <dhirc> rcn-ee: Do you have any idea what may have caused the drop from 6% to 2% CPU from v4.0.x-bone to 4.1.x? I am guessing the patches you linked to may be responsible for the 12% to 6% improvement.
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  • [00:49:22] <rcn-ee> dhirc, pretty sure it's the bufferbloat patch in v4.0.x (which v4.1.x doesn't have)
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  • [01:08:41] <nyt> hey rcn
  • [01:08:51] <nyt> going to start porting my beaglebone gem that's on the bbb to 4.1 soon
  • [01:08:53] <nyt> or adding support
  • [01:09:15] <nyt> i tried loading some of my compiled dts files into the new loc for the slots files
  • [01:09:17] <nyt> but there was no joy
  • [01:10:29] <nyt> just trying to load a gpio pin
  • [01:10:35] <nyt> any thoughts
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  • [01:20:50] * zmatt usually just produces a custom dtb instead of using overlays
  • [01:21:35] <zmatt> also, I heard the dtbo format of 4.1 isn't quite the same as 3.8 so you need a matching version of the dtc
  • [01:22:01] <zmatt> I've successfully loaded overlays though
  • [01:22:13] <zmatt> via the configfs mechanism
  • [01:24:39] <nyt> where to get dtc
  • [01:28:37] <zmatt> I'd hope apt-get install device-tree-compiler gets you a suitable version, but in case of doubt you can also clone my git version and compile it -- at least I know that one works -> https://github.com/dutchanddutch/dtc/tree/devel
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  • [01:36:10] <nyt> yah its already installed, dunno if it works for 4.1 though?
  • [01:36:17] <nyt> the dts that i was compiling that worked fine on 3.8 didnt work on 4.1
  • [01:36:25] <nyt> it built, but didnt load right
  • [01:36:33] <nyt> i'll try cloning that at some point
  • [01:37:07] <zmatt> could be the dts or the dtc, dunno how using the wrong dtc manifests itself
  • [01:37:55] <nyt> ill poke at it later
  • [01:38:01] <nyt> swamped atm :(
  • [01:39:44] <zmatt> FIY: for my dtc I grabbed the most recent "overlays" dtc I could find on github, merged it with the divergent improvements made in mainline dtc, and added my own patch on top which increases the flexibility of the grammar somewhat
  • [01:40:39] <zmatt> that was more than two months ago though, dunno if overlays have now finally been mainlined
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  • [02:20:02] <rcn-ee> nyt use https://github.com/beagleboard/bb.org-overlays/blob/master/dtc-overlay.sh
  • [02:20:51] <nyt> ty, bookmarked
  • [02:20:59] <rcn-ee> nyt, look for "/sys/devices/platform/bone_capemgr/" it's the easiest clue your on v4.1.x+ capemanager..
  • [02:21:23] <rcn-ee> anything prior wasn't under "platform"..
  • [02:21:24] <nyt> yeah i alreayd modified my code to find either slots file
  • [02:21:35] <nyt> i installed --lts
  • [02:21:41] <rcn-ee> ah.. good..
  • [02:21:46] <nyt> shit ran nice, but needed dts support
  • [02:21:51] <rcn-ee> the gpio# is the biggest diff..
  • [02:21:53] <nyt> working on some stuff now
  • [02:21:57] <nyt> what changes?
  • [02:22:22] <rcn-ee> around 3.10/11 or so, the gpioX value was corrected... 3.8.x was always one off..
  • [02:23:26] <nyt> ah
  • [02:23:28] <nyt> http://pastebin.com/raw.php?i=wWJVVdw7
  • [02:23:31] <rcn-ee> in the 3.8.x dtbo example, we always commented "gpioX" /* really gpioX-1*/...
  • [02:23:32] <nyt> what i generate now for p8_10
  • [02:23:52] <nyt> would i need to change anything there?
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  • [02:26:01] <rcn-ee> that should be fine..
  • [02:36:24] <rcn-ee> nyt, btw, in panto's tree this looks interesting.. never thought of using extcon interface before..
  • [02:36:30] <rcn-ee> https://github.com/pantoniou/linux-beagle-track-mainline/commit/4dd38fe9c0ef1a0db76cacb8f09bef9b36fcd9ff
  • [02:36:56] <rcn-ee> it's kinda like cape-universal.. but extcon is already in the kernel..
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  • [03:36:13] <lathiat> Hi Folks.. is anyone running the latest rcn-ee 14.04.3/ 4.1.6-ti-r15 image on a beaglebone black with working ethernet? i have rev B, can't get the ethernet to work on mine, it comes up, has link, mii-tool shows link, but i get no traffic flow. 0 rx bytes showing on eth0. i do get "net eth0: phy 4a101000.mdio:01 not found on slave 1" in dmesg but i see that in a lot of places on google and not sure if that is perhaps 'normal' for the second port th
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  • [04:13:32] <rcn-ee> lathiat, mdio:01 is not wired...
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  • [05:48:20] <nyt> ergh forcing video mode to 720 in 4.1 has no joy
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  • [05:55:11] <nyt> that's a pain in the ass :(
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  • [06:07:17] <nyt> ok got it working had to change X to use modesetting
  • [06:07:23] <nyt> now i can has refresh rates
  • [06:07:25] <nyt> and res
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  • [06:11:26] <nyt> but now there's no audio
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  • [07:13:20] <nyt> rcn
  • [07:13:21] <nyt> thanks for that link
  • [07:13:26] <nyt> i can confirm that at least gpio stuff is working on 4.1
  • [07:13:28] <nyt> https://github.com/notnyt/beaglebone/commit/7caa8f19f017e4a3d489ce8a2e8526c2e36905d5
  • [07:13:31] <nyt> with that new dtc bin
  • [07:13:52] <nyt> holy shit 4.1 is so nice just gotta get sound running
  • [07:19:47] <nyt> anyone got tips?
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  • [07:27:27] <nyt> audio over hdmi that is
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  • [09:09:13] <nyt> :(
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  • [09:42:16] <schmid> found the solution for the different behavior of the one strobe signal
  • [09:43:33] <schmid> the beaglebone seems to have some issues, testet one other that is fine
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  • [13:05:34] <fr1> Hi
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  • [13:08:51] <tbr> lo
  • [13:09:06] <av500> 'giorno
  • [13:18:27] <fr1> Hi, after i have create a sd card, with "Angstrom Distribution (BeagleBone, BeagleBone Black - 4GB SD) 2013-06-20", if I need to change driver for audio codec, it's necessary rebuild only the kernel. But for a correct matching, where I can found a original kernel?
  • [13:19:27] * mihain (567a8454@gateway/web/freenode/ip.86.122.132.84) Quit (Ping timeout: 246 seconds)
  • [13:19:37] <fr1> http://beagleboard.org/linux this procedure?
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  • [13:30:02] <fr1> ? any idea
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  • [13:37:50] <tbr> does the image come with a manifest?
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  • [13:42:40] <fr1> where is found the manifest file?
  • [13:43:44] <fr1> where is the manifest file?*
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  • [13:46:19] <tbr> I have no idea how to dig this out. you'd need to look at git tags from years ago in the angstrom git
  • [13:47:38] <tbr> if I'd need to do something with the BBB today, I'd probably either build an up to date angstrom myself or base off a debian console image. Also I'd probably use kernel >=4.1 instead of 3.8
  • [13:47:44] <fr1> The original image: "Angstrom Distribution (BeagleBone, BeagleBone Black - 4GB SD) 2013-06-20"
  • [13:47:57] <fr1> use 3.8?
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  • [14:27:29] <fr1> Angstrom Distribution (BeagleBone, BeagleBone Black - 4GB SD) 2013-06-20 ==>> MOUNT 3.8 KERNEL?
  • [14:28:45] <fr1> Angstrom Distribution (BeagleBone, BeagleBone Black - 4GB SD) 2013-06-20 ==>> from http://beagleboard.org/latest-images
  • [14:31:42] <av500> 2013
  • [14:31:48] <av500> pls use latest image
  • [14:31:52] <av500> not something 2years old
  • [14:32:20] <agmlego> Also stop using unsupported distros. ;-P
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  • [14:36:26] <fr1> @av500: okay thanks
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  • [14:42:01] <veremit> personally .. I would recommend not using smethig 6 months old either ..
  • [14:42:49] <av500> veremit: I write my own kernel every morning anew
  • [14:42:59] <veremit> excellent av500 +5
  • [14:42:59] <av500> so I make sure I run only the freshest SW
  • [14:43:39] <agmlego> av500 uses a freshly-forged needle to carefully poke the bits to the right values.
  • [14:43:42] <veremit> I assume you mean from scratch .. and not simply recompile ;D
  • [14:43:49] <tbr> av500: is it apache licensed?
  • [14:44:00] <veremit> *shudder*
  • [14:44:30] <av500> veremit: no, I go down and get fresh sand from the playground
  • [14:44:35] <av500> then I heat up the oven
  • [14:44:51] <av500> by the time the chip is baked I write most of the drivers
  • [14:45:00] <agmlego> Posh, too easy. Have to grind rocks up yourself to ge the sand.
  • [14:45:10] <av500> agmlego: I have kids :-P
  • [14:45:12] <av500> to do that
  • [14:45:16] <tbr> lol
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  • [14:45:30] <agmlego> av500: You make new kids every morning too, to grind yer rocks?
  • [14:45:31] <agmlego> ;-P
  • [14:45:44] <av500> I grab random ones
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  • [14:52:33] <veremit> roflmao
  • [14:52:58] <veremit> now ya jest gettin carried away :p
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  • [15:31:14] <nyt> so on the 4.1 tree, how to get sound output on hdmi?
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  • [15:45:37] <rcn-ee> nyt, v4.1.x-ti or v4.1.x-bone?
  • [15:48:22] <rcn-ee> ti's been patching hdmi audio in v4.1.x-ti, so it 'should' work as long as it picks up a the correct mode from the tv.. i don't really have an hdmi-audio tv to test in th elab..
  • [15:48:24] <nyt> 4.1.x-bone
  • [15:48:32] <rcn-ee> ah that's why...
  • [15:48:38] <nyt> last thing i need to get working on 4.1 here
  • [15:48:40] <rcn-ee> hdmi audio is still a "todo" on mainline..
  • [15:48:44] <nyt> fml
  • [15:48:58] <nyt> does 4.1.x-ti support it and cape manager?
  • [15:49:07] <veremit> I've never bothered with hdmi audio on a desktop even yet ..
  • [15:49:17] <veremit> although .. I don't possess a tv .. so ..
  • [15:49:24] <rcn-ee> nyt, the cape-manager patchset is unified on all my v4.1.x+ branches..
  • [15:49:39] <nyt> so 4.1.x-ti may support it?
  • [15:49:48] <nyt> was working on 3.8 just lost it going to 4.1
  • [15:50:12] <rcn-ee> nyt, should have worked on v3.14.x too..
  • [15:50:27] <rcn-ee> nyt, give: sudo apt-get install linux-image-4.1.9-ti-r20 a try...
  • [15:50:43] <nyt> will do
  • [15:50:58] <nyt> prob a dumb question
  • [15:51:00] <nyt> but no grub on bbb
  • [15:51:03] <nyt> how to switch between kernels?
  • [15:51:17] <rcn-ee> nyt which rootfs are you using? cat /etc/dogtag ?
  • [15:51:43] <nyt> BeagleBoard.org Debian Image 2015-03-01
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  • [15:52:11] <nyt> btw ran you dtc script, thanks for the heads up on that, my gem works, and i pushed the changes to github and rubygems
  • [15:52:13] <rcn-ee> nyt, then your fine.. i have a grub inspired update-initramfs shim to update the kernel..
  • [15:52:30] <nyt> so whichever kernel is last apt-get installed is the one to boot
  • [15:52:38] <rcn-ee> nyt, correct.. ;)
  • [15:52:56] <rcn-ee> and you can swap between them by updating the uname_r variable in /boot/uEnv.txt
  • [15:53:02] <nyt> ok thats it?
  • [15:53:04] <nyt> thats easy enough
  • [15:53:46] <nyt> christ i hope this works
  • [15:53:48] <nyt> 4.x was nice
  • [15:53:49] <rcn-ee> well as long as you spell the uname_r kernel value correct.. on error, it'll mount the eMMC as a flash usb device..
  • [15:54:03] <nyt> well, running of sd card so
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  • [15:55:45] <veremit> rcn-ee .. that's quite a nifty setup
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  • [15:58:52] <abferm> I'm trying to write some u-boot scripts in my uEnv.txt file. Is there any way to make variables multiline, ie: escape newline characters so they are ignored?
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  • [16:00:24] <nyt> rcn
  • [16:00:24] <nyt> <3
  • [16:00:34] <nyt> aplroot@backupbone:~# aplay -l
  • [16:00:34] <nyt> **** List of PLAYBACK Hardware Devices ****
  • [16:00:34] <nyt> card 0: Black [TI BeagleBone Black], device 0: HDMI hdmi-hifi-0 []
  • [16:00:34] <nyt> Subdevices: 0/1
  • [16:00:35] <nyt> Subdevice #0: subdevice #0
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  • [16:01:47] <rcn-ee> i see's hdmi-audio... does it actually work on your tv thou??
  • [16:01:51] <veremit> abferm .. you'll hit a 255 char limit sooner or later anyhow
  • [16:02:00] <veremit> unless that got fixed
  • [16:02:12] <veremit> better to run sub-commands I found
  • [16:03:13] <nyt> yes
  • [16:03:26] <rcn-ee> sweet!! thanks for verifing nyt!
  • [16:03:51] <nyt> also
  • [16:04:11] <nyt> nyt
  • [16:04:12] <nyt> ack
  • [16:04:17] <nyt> root@backupbone:~# irb
  • [16:04:17] <nyt> irb(main):001:0> require 'beaglebone'
  • [16:04:17] <nyt> => true
  • [16:04:17] <nyt> irb(main):002:0> include Beaglebone
  • [16:04:17] <nyt> => Object
  • [16:04:18] <nyt> irb(main):003:0> p9_11 = GPIOPin.new(:P9_11, :IN)
  • [16:04:20] <nyt> => #<Beaglebone::GPIOPin:0x1925100 @pin=:P9_11>
  • [16:04:22] <nyt> irb(main):004:0> callback = lambda { |pin,edge,count| puts "[#{count}] #{pin} #{edge}"}
  • [16:04:24] <nyt> => #<Proc:0x1931ad8@(irb):4 (lambda)>
  • [16:04:26] <nyt> irb(main):005:0> p9_11.run_on_edge(callback, :BOTH)
  • [16:04:28] <nyt> => #<Thread:0x193a0d0 run>
  • [16:04:30] <nyt> irb(main):006:0>
  • [16:04:32] <nyt> irb(main):007:0* [0] P9_11 LOW
  • [16:04:36] <nyt> [1] P9_11 HIGH
  • [16:04:38] <nyt> [2] P9_11 HIGH
  • [16:04:40] <nyt> [3] P9_11 LOW
  • [16:04:42] <nyt> [4] P9_11 HIGH
  • [16:04:48] <nyt> so that works ;)
  • [16:05:16] <nyt> ive only tested the gpio stuff from https://github.com/notnyt/beaglebone
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  • [16:05:24] <nyt> i'll get to the rest of it eventually
  • [16:05:26] <veremit> *ahem* pastebin :p
  • [16:05:36] <veremit> or alternatives :)
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  • [16:08:55] <nyt> yeah sorry ;)
  • [16:09:03] <nyt> it looked small on my console lol
  • [16:09:20] * c10ud (~c10ud@emesene/dictator/c10ud) Quit (Quit: cya)
  • [16:09:55] <abferm> veremit: Still, it would be nice to be able to visualize conditionals, etc.
  • [16:10:35] <veremit> mm uboot is a bit of a pain for actual versatile scripting
  • [16:11:04] <nyt> rcn ty again
  • [16:11:21] <nyt> and for all the works as always
  • [16:11:57] <nyt> so, how far of are we from having X with accelerated graphics and not just fb writes?
  • [16:13:25] <rcn-ee> nyt, the plan is egl + wayland... X is done. ;)
  • [16:15:58] <nyt> ah
  • [16:16:04] <nyt> i hate X
  • [16:16:08] <nyt> ive hated it for decades
  • [16:16:33] <veremit> my arm boards are currently all headless
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  • [16:17:22] <nyt> yeah well this one is hooked up to a 60" display in an installation lol
  • [16:17:23] <nyt> mine are too
  • [16:17:31] <nyt> and i think one of my h-bridges roasted my bbb the other day :(
  • [16:17:33] <nyt> but i havent gotten to check it
  • [16:17:47] <veremit> kewl .. that's one application .. but I'd probably use a pi .. *cough* lol
  • [16:17:59] <nyt> yeah but its also hooked up to lots of io
  • [16:18:07] <veremit> ah beagle ftw
  • [16:18:09] <nyt> yes
  • [16:18:11] <nyt> indeed
  • [16:18:17] <veremit> :)
  • [16:18:26] <nyt> if only the video was a tooooooouch better, but i cant complain
  • [16:18:38] <nyt> my ruby lib makes scripting io stuff such cake
  • [16:18:40] <veremit> Pi cape!
  • [16:18:41] <nyt> with threading and everything
  • [16:18:43] <veremit> *eww* lol
  • [16:18:49] <nyt> nah its awesome
  • [16:18:53] <nyt> can dev shit so fast
  • [16:19:08] <veremit> pi2 .. quad core :p
  • [16:19:16] <veremit> same insane price
  • [16:19:18] <nyt> i know :(
  • [16:19:19] <nyt> i have one
  • [16:19:26] <nyt> im using one as a bluetooth audio sink in my kitchen
  • [16:19:31] <veremit> but no emmc/nand/etc
  • [16:19:33] <nyt> have it hooked up to an emotiva a100 and some speakers i built
  • [16:19:41] <veremit> cool ^_^
  • [16:19:43] <nyt> i dont even use the emmc on the bbb
  • [16:20:17] <veremit> arm chips are still quite application specific
  • [16:20:33] <veremit> rcn-ee.. did the 485 serial patches make it in yet?! :)
  • [16:20:57] <rcn-ee> veremit, haven't seen anything yet.. i thought i had someone working on it...
  • [16:21:23] <veremit> might get to use the beagle as an ethernet io board :D
  • [16:21:26] <rcn-ee> it should be easy with all the helpers.. just need somone with a board..
  • [16:21:44] <veremit> well .. if I buy one .. I can sort that ..
  • [16:22:02] <veremit> but I'da thought you had contacts .. lol :P
  • [16:22:25] <rcn-ee> the user who fixed in in 3.8.x was interested..
  • [16:23:46] <veremit> well .. I got like $800 of IO stuck in these machines we build ... could replace it easily with one $40 beagle ..
  • [16:24:27] <abferm> What is being patched for 485? I'm very interested since I use 485 to talk to pretty much everything.
  • [16:24:55] <veremit> abferm .. half duplex needs TXEN signal 'fudging'
  • [16:25:28] <abferm> We just use the rts pin for TXEN.
  • [16:25:31] <rcn-ee> abferm, 8250_omap needs to be extended for 485, the 8250 has a gpio_485 helper... but it needs a user with the connectors to test. ;)
  • [16:26:12] <veremit> rcn-ee. you know if there's a proto cape?
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  • [16:26:49] <zmatt> rcn-ee: s/connectors/drivers/
  • [16:27:13] <veremit> zmatt .. the s/w is out there .. and I use rs485 hardware almost daily
  • [16:27:15] <zmatt> (in the hardware sense of the word)
  • [16:27:25] <abferm> I use a software rts on my 485 to toggle it, I haven't had any issues, and I've driven it up to 1Mb/s
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  • [16:27:40] <veremit> what kernel version? must be old ...
  • [16:28:05] <veremit> I think the omap driver got patched ..
  • [16:28:40] <abferm> I was using my own build of 3.19.0
  • [16:28:41] <veremit> but normally the txen signal gets squished one end or the other .. I've never tried it .. but I've seen arm implementations
  • [16:28:59] <zmatt> abferm: my only concern would be whether the kernel drives makes sure the tx fifo is empty before honoring your rts change
  • [16:29:20] <veremit> got access to a decent DSO ..
  • [16:29:35] <abferm> I let the kernel drivers manage rts, they are just set in the device tree.
  • [16:29:37] <veremit> so .. I'm game .. just need a beagle and headers, and I can crowbar an IO board
  • [16:30:17] <veremit> abferm ,, I thought RTS timed out prematurely .. but I'd be interested to see your setup/code/etc if that's available :p
  • [16:33:31] <abferm> timing may also depend on the specifig 485 transceiver used... We are using TI's SN65HVD11DR
  • [16:34:18] <veremit> bog standard maxim 485 drivers and derivatives here
  • [16:34:55] <abferm> Maxim makes one with auto-TXEN, but we were having issues with it.
  • [16:35:15] <veremit> yea we're using FTDI drivers off a USB connection .. cos they generate the tXEN internally
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  • [16:36:24] <abferm> Yeah, FTDIs are awesome in everything but price
  • [16:36:34] <Jackix> Is it possible to find an img of a Beaglebone Black with rtai installed or do i have to build the kernel and install it my self?
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  • [16:37:39] <veremit> the ft230x's are much cheaper than the 232's
  • [16:37:48] <veremit> and have adequate functionality
  • [16:38:13] <veremit> same driver ofc
  • [16:38:17] <veremit> software-wise
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  • [16:38:57] <veremit> nothin special about that TI 485 chip btw :)
  • [16:39:14] <veremit> I think we're on max491's last I saw
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  • [19:54:55] <nyt> rcn you here?
  • [19:55:00] <nyt> p8 dtc stuff not working
  • [19:55:02] <nyt> there a trick for it?
  • [19:55:21] <rcn-ee> nyt what you getting?
  • [19:55:26] <rcn-ee> dmesg | grep bone
  • [19:55:42] <nyt> nm
  • [19:55:46] <nyt> my code reuses the dts files
  • [19:55:50] <nyt> and dtb if its compiled already
  • [19:55:51] <nyt> i have old ones
  • [19:55:52] <nyt> need to remove
  • [19:56:13] <veremit> oops .. :p
  • [19:57:30] <nyt> cool all good sorry
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  • [20:00:01] <rcn-ee> nyt, you got everything working? ;)
  • [20:00:35] <veremit> not Everything, rcn .. surely thats not possible :p
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  • [20:01:31] <rcn-ee> there's always hope!
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  • [20:01:48] <veremit> :D I guess ..
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  • [20:14:07] <nyt> rcn-ee: appears so ;)
  • [20:14:58] <rcn-ee> nyt, btw, do you detect the patch dtc with your project? or should i move after i build/install the patch dtc in the image build script?
  • [20:15:24] <nyt> i just call 'dtc'
  • [20:15:25] <nyt> so
  • [20:15:27] <nyt> whichever is in the path
  • [20:15:30] <nyt> yours won via local
  • [20:15:36] <nyt> and all worked
  • [20:15:40] <rcn-ee> cool...
  • [20:15:53] <nyt> https://github.com/notnyt/beaglebone/commit/7caa8f19f017e4a3d489ce8a2e8526c2e36905d5
  • [20:15:54] <nyt> that was it
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  • [22:55:06] <abferm> Hey guys, I get this error from zz-uent_txt:
  • [22:55:11] <abferm> sed: -e expression #1, char 24: unterminated `s' command
  • [22:55:23] <rcn-ee> abferm, what system?
  • [22:55:55] <veremit> I've seen that before ...
  • [22:55:58] <rcn-ee> abferm, it's this line i belive: https://github.com/rcn-ee/repos/blob/master/bb-customizations/suite/jessie/debian/zz-uenv_txt#L19
  • [22:56:10] <rcn-ee> what version of sed?
  • [22:56:22] <abferm> hmmm
  • [22:56:25] <veremit> gnu sed?
  • [22:56:42] <abferm> sed (GNU sed) 4.2.2
  • [22:57:24] <rcn-ee> humm it's ben 4.2.x for awhile in debian: https://packages.qa.debian.org/s/sed.html
  • [22:57:25] <abferm> rcn-ee: yep, that's the line. The error dissappears when I comment it out.
  • [22:57:32] <rcn-ee> did you switch bash?
  • [22:57:39] <abferm> ?
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  • [22:58:30] <rcn-ee> abferm, did you switch /bin/sh to /bin/dash?
  • [22:58:41] <abferm> nope
  • [22:59:16] <abferm> didn't switch it to /bin/bash either ;P
  • [22:59:28] <veremit> default shell is dash sometimes ..
  • [22:59:33] <rcn-ee> i usually assume /bin/bash. ;)
  • [22:59:41] <veremit> can't remember which distro .. but I hit that before ..
  • [22:59:46] <rcn-ee> ubuntu...
  • [22:59:55] <veremit> bloody ubuntu ..
  • [23:00:00] <abferm> I build my own debian images, the default is definately bash
  • [23:00:40] <rcn-ee> guys any ideas on a replacment sed line? ;)
  • [23:01:01] <rcn-ee> just swapping uname_r to a the newly insalled kenrle..
  • [23:01:50] <veremit> change the : for ... erm, anything?
  • [23:02:20] <veremit> assuming its the delimiter its whining about ...
  • [23:02:28] * idwer_ is now known as idwer
  • [23:03:13] <rcn-ee> shellcheck.net doesn't complain......
  • [23:03:37] <veremit> try a ~ or a ^ .. something the shell is gonna ignore
  • [23:04:14] <veremit> + .. can be almost anything in sed ..
  • [23:04:32] <veremit> but / is traditional .. and
  • [23:04:41] <veremit> # is my 2nd choice when there's / involved
  • [23:05:11] <abferm> bash doesn't have an issue with it... I prefer the traditional, and it shouldn't be involved with a uname.
  • [23:06:30] <veremit> s/krenle/kernel
  • [23:07:05] <abferm> veremit: don't forget your /g
  • [23:07:22] <rcn-ee> abferm, https://gist.github.com/RobertCNelson/6e305e67562b15a6f63b
  • [23:07:41] <veremit> don't need to be greedy :P
  • [23:07:49] <rcn-ee> can you try that..
  • [23:08:19] <rcn-ee> under: /etc/kernel/postinst.d/
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  • [23:10:47] <abferm> working on it... dpkg-reconfigure takes a while
  • [23:11:00] <abferm> same thing
  • [23:11:52] * idwer_ (~irc@unaffiliated/idwer) has joined #beagle
  • [23:12:22] <abferm> pastebin is broken...
  • [23:12:41] <rcn-ee> abferm, yeap...
  • [23:12:47] <veremit> bugger
  • [23:12:58] <rcn-ee> it's funny as it's broken on paste.debian.net and there's a debian bug report...
  • [23:13:14] <veremit> nice
  • [23:14:05] <rcn-ee> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=799580
  • [23:14:05] <abferm> update-initramfs: Generating /boot/initrd.img-3.19.0-armv7-1 zz-uenv_txt: Updating /boot/uEnv.txt [uname_r=3.19.0-armv7-1] sed: -e expression #1, char 24: unterminated `s' command run-parts: /etc/kernel/postinst.d/zz-uenv_txt exited with return code 1
  • [23:14:30] <veremit> which is char 24 ...
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  • [23:15:41] <veremit> oh .. it is the delimiter .. is $older_kernel bein eval'd correctly?
  • [23:16:17] <rcn-ee> veremit, "correctly"... i'm just checking if it's valid... https://github.com/rcn-ee/repos/blob/master/bb-customizations/suite/jessie/debian/zz-uenv_txt#L15
  • [23:16:19] * idwer_ is now known as idwer
  • [23:16:28] <rcn-ee> probally should safe guard it more..
  • [23:17:05] <rcn-ee> abferm, can you change the "#!/bin/sh -e" -> "#!/bin/sh -ex" so we can see how badly i mis evaluated it? ;)
  • [23:17:07] <abferm> The echo works fine though...
  • [23:17:08] <veremit> abferm.. what does the previous echo say .. does it look right?
  • [23:17:16] <veremit> nvm lol
  • [23:17:55] <veremit> yea -x should tell us what the interpreter is 'seein'g
  • [23:19:35] <abferm> What part of this do you need?
  • [23:20:09] <rcn-ee> abferm everything involving the "older_kernel" value..
  • [23:20:20] <rcn-ee> it's probally an extra line return...
  • [23:20:29] <abferm> nvm patebin.com is up again, I'll just give you everything http://pastebin.com/Q7x9mLaK
  • [23:21:27] <veremit> lmao good one .. hehehe
  • [23:21:35] <veremit> don't think it should contain al -that- crap lol
  • [23:21:37] <rcn-ee> humm... you have /uEnv.txt and /boot/uEnv.txt to combine. ;)
  • [23:21:42] <veremit> just the 3.1x .. bit
  • [23:21:47] <abferm> the x made it very verbose, err... just ignore my scripts in there
  • [23:21:48] <rcn-ee> how'd that happen. ;)
  • [23:22:18] <rcn-ee> i'll fix the older_kernel to protech against that. ;)
  • [23:22:54] <rcn-ee> i remember this bug from a few months back, we never got down to the issue.. now it make sense..
  • [23:26:24] <veremit> I still can't qiute see how that arose though ..
  • [23:28:54] <veremit> something to do with the awk bit .. which is where I'm lost ..
  • [23:28:54] <rcn-ee> veremit, it looks like /uEnv.txt and /boot/uEnv.txt got cat'ed together...
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  • [23:29:34] <veremit> rcn-ee .. well I'm guessing something -did- that ..
  • [23:29:47] <rcn-ee> yeah but what...
  • [23:30:40] <veremit> ah I can see what you're trying to do .. lol
  • [23:31:24] <veremit> why don't you set the kernel version as a uboot variable ...
  • [23:31:35] <veremit> and use substitution there
  • [23:31:55] <rcn-ee> i'm thinking windows line feeds..
  • [23:32:02] <veremit> but .. nvm that ..
  • [23:32:23] <veremit> how did you get uenv+uenv :P window's doesn't run that .. (or shouldn't ...!!)
  • [23:35:33] <veremit> rcn-ee: its easy enough to filter out any rogue /r #s from ya /n #s
  • [23:35:56] <veremit> and that be CR not LF :P
  • [23:37:15] <rcn-ee> abferm, can you test this.. https://gist.github.com/RobertCNelson/6e305e67562b15a6f63b
  • [23:37:33] <rcn-ee> replace the older_kernel, i've converted spaces to line feeds to seperate that tail stuff..
  • [23:38:34] <rcn-ee> actually should grep for "uname_r=" as that should knock out the rest too..
  • [23:40:00] <veremit> yyyessss... that would do it ..
  • [23:40:39] <rcn-ee> what's nice that's in a deb package, so i can push out an update toight. ;)
  • [23:40:58] <veremit> or just use an option to grep to pull only the first match ..
  • [23:41:49] <rcn-ee> i tried that with tail, while playing with a temp script, that failed too. ;)
  • [23:42:16] <rcn-ee> so i went with a classic swith blanks to line feeds...
  • [23:44:13] <veremit> what are you separating with spaces and linefeeds??
  • [23:44:29] <veremit> I can only see half the picture here lol
  • [23:45:12] <veremit> nothing wrong with [grep 'uname_r=' /boot/uEnv.txt] surely
  • [23:46:02] <rcn-ee> it looks like it's picking up the next line after that variable..
  • [23:46:48] <veremit> hmm .. its not *nix in origin?
  • [23:47:35] <rcn-ee> it should be on extX... but it might have got copied from fatx.. u-boot will read it either way..
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