**** BEGIN LOGGING AT Fri Aug 22 02:59:59 2014 Aug 22 03:28:54 [kernel] anithamolbenny opened pull request #99: Fix for a part of video got flipped from bottom to top (3.8...3.8) http://git.io/836fqw Aug 22 06:47:10 Hii al Aug 22 06:47:21 i am trying to use i2c over beagle bone Aug 22 06:47:44 but i can't read the values by i2cget Aug 22 06:48:26 i interfaced my this mems sensor with Raspberry pi there it worked fine but here i am getting errors Aug 22 06:49:12 Error: Can't use SMBus Quick Write command on this bus this i get when i write i2cdetect -y 2 Aug 22 06:50:39 the usual suspects first: are you sure that wiring is correct - the i2c bus is activated - muxing is correct? Aug 22 06:51:06 LetoThe2nd, yes i am getting my device id there Aug 22 06:51:17 with i2cdetect -r 2 Aug 22 06:52:12 ok Aug 22 06:53:25 hm. googling suggest to check the bus functionality with i2cdetect -F 2 Aug 22 06:53:31 and as i am trying to read data i am getting read error Aug 22 06:53:57 if that yields that the device does not im plement the particular command you're trying to use... well then it probably won't work Aug 22 06:55:13 http://codepad.org/nSkm6TuI this i got Aug 22 06:55:38 it says: no SMBus Quick Command. Aug 22 06:55:44 i think thats the point. Aug 22 06:55:46 yes Aug 22 06:56:13 then what could be done Aug 22 06:56:23 use standard i2c functionality. Aug 22 06:57:11 how??? Aug 22 06:57:47 sorry, its your sensor and your datasheet. Aug 22 06:58:08 i2cdetect is merely a tool for the very initial diagnosis Aug 22 06:58:45 so for getting data, write your application and have it use the proper commands. Aug 22 06:59:08 ohkk Aug 22 07:30:38 hi Aug 22 09:07:51 help me with i2c sensor, i am getting read error and write error Aug 22 11:14:10 Hi Aug 22 11:14:55 I have got a beaglebone black board. Aug 22 11:17:05 I have ported Angstrom in it. But the touch seems to have a problem. Aug 22 11:25:26 there was no need to port something Aug 22 11:32:00 * tbr ports-a-potty Aug 22 11:42:08 tbr: apropos, how is your potty-port going? Aug 22 11:42:41 KotH: not much work done on it recently, but it works reliably Aug 22 12:59:05 Who was having trouble booting vanilla 3.16 yesterday? Aug 22 12:59:09 Cause I just did Aug 22 13:00:48 It crashes though Aug 22 13:00:52 but I do get some output Aug 22 13:00:59 [ 0.780045] omap_rng 48310000.rng: OMAP Random Number Generator ver. 20 Aug 22 13:00:59 [ 0.787095] Unable to handle kernel NULL pointer dereference at virtual address 00000000 Aug 22 13:01:12 Ecco: me! I got it to work after a lot of trials, with omap2plus_defconfig + earlyprintk Aug 22 13:01:25 indeed that was you :) Aug 22 13:01:30 I'm using earlyprintk too Aug 22 13:01:36 here are my boot args Aug 22 13:01:40 set bootargs console=ttyO0,115200n8 earlyprintk=serial,uart1,115200n8 ro Aug 22 13:01:47 Ecco: could you post your bootargs? Aug 22 13:01:54 Ecco: :) Aug 22 13:01:54 I read your mind :p Aug 22 13:02:27 Ecco: yes, I too have the same thing Aug 22 13:02:43 same crash? Aug 22 13:02:48 or same boot args? Aug 22 13:03:03 no, same bootargs. The kernel boots for me Aug 22 13:03:07 (at that point I'm not surprised mine crashes, I configured the kernel way too quickly) Aug 22 13:07:51 Ecco: make sure you use the power supply and not USB for power. it turns off abruptly at `[4.007115] Started Journal Service.`. Aug 22 13:08:11 (maybe while configuring the USB controller) Aug 22 13:09:05 What? Aug 22 13:09:06 Why? Aug 22 13:10:15 I didn't even enable USB at that point :) Aug 22 13:10:35 Ecco: The board goes down (LEDs off, no more console putput) if I power it from the USB instead of the adapter. Aug 22 13:10:37 And the kernel is doomed to panic, there's no filesystem enabled Aug 22 13:10:46 varad: That's weird, it shouldn't Aug 22 14:16:01 someone knows what can cause an segmentation fault while runnig the code? Aug 22 15:00:48 chosethecake: depends on the code. Aug 22 15:01:15 with beginners, its mostly messing up with pointer in c. Aug 22 15:01:48 try to access a pointer to NULL, guaranteed seg fault Aug 22 15:09:45 Any hint how to mount an EXTx disk image on Mac OS? Aug 22 15:14:16 jhn: OSXFUSE Aug 22 15:14:25 Haven't tried it though Aug 22 15:14:30 My best bet would be to use Virtualbox Aug 22 15:15:39 AFAIU Virtualbox can only access external, hence physical drives. Aug 22 15:17:49 OSXFUSE installed but still no cigar. Aug 22 15:19:45 jhn you mean an image create with dd? Aug 22 15:20:29 The latest beagle imafge to be precise. This contains an EXT volume I try to access. Aug 22 15:23:18 the easiest thing is just to burn it to an SD I suppose, if you have vm installed you can always use a loopback method for mounting the drive Aug 22 15:23:52 maybe something like that exists in OSX, but I've never tried it Aug 22 15:24:50 OK, then I would have an external volume. But not exactly straight forward. Aug 22 15:25:48 jhn: just send the image into the virtualbox Aug 22 15:26:04 and mount it using loopback Aug 22 15:26:21 Have you tried that? Aug 22 15:26:27 sure… Aug 22 15:26:55 That's very basic Aug 22 15:27:16 Have you ever mounted a disk image on a linux machine? Aug 22 15:27:23 I want to avoid any Virtual something by all means. At least I know this is the way of last resort. Aug 22 15:27:32 Why? Aug 22 15:27:42 VirtualBox is very lightweight Aug 22 15:27:59 And having a Linux system around when working with another embedded Linux device will be useful Aug 22 15:28:14 want to build your own kernel? You'll need a Linux machine Aug 22 15:29:06 Its a personal thing. I never trusted Simulators, virtuial machines or debuggers. Call it what ever you want. Aug 22 15:29:41 if you don't trust debuggers, how do you find errors? Aug 22 15:30:27 printf Aug 22 15:30:34 adding/removing printf is tedious and extremely limited Aug 22 15:30:46 jhn: printf? Are you serious? Aug 22 15:30:58 Time to reconsider your choices mate :) Aug 22 15:31:15 Seriously, learn GDB, learn about virtual machines and why they are awesome :) Aug 22 15:31:19 It serves me well - And please don’t try to force me. Aug 22 15:31:29 I agree that vm's are not very lightweight, but debuggers are VERY helpful Aug 22 15:31:31 ok, so don't ask for help then :) Aug 22 15:31:44 well, VMs run most of the internet nowadays Aug 22 15:31:57 no one will force you Aug 22 15:32:05 We were not discussing my debug method. Aug 22 15:32:23 Yes I know, i am totally old school. Aug 22 15:32:29 My car just turned 50. Aug 22 15:33:00 well, you asked for the best way to R/W an ext4 FS on OS X. Believe me, the best way is to just use Linux with whatever virtualizer you're most confortable with Aug 22 15:33:15 And not using a debugger doesn't make you old school, it makes you inefficient :) Aug 22 15:34:02 OK virtual box then. Aug 22 15:34:14 :-) Aug 22 15:34:35 Ecco, if that jhn's preference no need to argue the fact Aug 22 15:35:24 thurgood: well, excuse me but not using a debugger is widely considered a bad practice in the software industry Aug 22 15:36:26 of course it's not mandatory. Hell, you could even do without printf and just debug by reading your code :) Aug 22 15:36:39 But I think it's a good tip to encourage someone to learn using a debugger Aug 22 15:36:50 Now of course he doesn't have to :) Aug 22 15:50:23 build #10 of runtests started, including [3a7b5001427fe8d1a2eab3b1443a832b6ee7fd64] Aug 22 15:51:47 build #10 of runtests is complete: Failure [failed shell shell_1] Build details are at http://builds.beagleboard.org/builders/runtests/builds/10 blamelist: robertcnelson@gmail.com Aug 22 15:51:48 build #11 of runtests started, including [20ba08535e520fa57e4ea27ad607e5e7c8d94291, a4d7c71d59170727b5c508a73c45fd6bf1405ac3, 77bb5125aff7bc2129a3b99ff7b415a03d74e97d, 1899dd410a1bc71c03c54244f4d1acff1c1b19d5, c858ed362ef1f007ac4c836767e69cfe128046c6, dfd98adf30e695d409d805337aa8e55ec59f95b0, 9314a7d7d095db64ff0d36b4d2256f6c7d60e581, Aug 22 15:51:48 5f90aedcdba7e769c0650d3c59f98c52e89b4876, ae845701a4e30657f63fa9f31e49ce3d3ef24761, 3151b5b0f56274ab98bd3eecdb14622a0da3fb67, 2ee2b79198da17fea05cd27f23718dac7904aef1, 33b8f599eec5b347e8a791410066f7485c1bfc53, 4ebf6159e2c18e35989de54557d151a8fda4e2b3, ebda65c713edf14955e4d74cdb76d0abefca2df9, 2686ca55ba2f31b02b9bc92c66bf48f4fbaad674, Aug 22 15:51:48 f5d953ac0e8a338126e58a937c682d592a77c026, ddeb84647a74cd63b397dde3244f2cb42c52e5bb, d2831a29dcd41c57f2a65ce2fe1b0150cecf9b1c, 76a44a4abbb5d35d7c579c59c96ced92ac917804, 9c9bbc30aecf9bf87202a4c2d6f3291300352e39, b239df8a4242c6ccc559164b7f37e913b77d4ee7, 46a328ac2a797a936799303187c4611a1d7506c4, 2d796e239131483e815b01c07be280458cb3b4e7, Aug 22 15:51:48 2d67868e301cb6376c388a4e3332d7a775706396, 676cafa5d7ab87959fdae823ff13221344defdbc] Aug 22 15:52:15 mornin' Ecco Aug 22 16:08:41 I'm trying to ssh into my BBB, but I can't figure out what combination of username and password works. I'm trying root/temppwd but it isn't working Aug 22 16:13:19 Oh, and I tried an empty password as well Aug 22 16:22:44 well Aug 22 16:22:54 on mine you could either use debian/temppwd and then just sudo Aug 22 16:23:01 or root/ Aug 22 16:23:06 (empty password) Aug 22 16:26:31 build #11 of runtests is complete: Success [build successful] Build details are at http://builds.beagleboard.org/builders/runtests/builds/11 Aug 22 17:41:23 Ecco: I tried both temppwd and empty password. Neither of them worked. Aug 22 17:45:11 Ecco: root/root worked. I messed up when I originally tried that. Aug 22 20:22:39 Howdy, internet neighbors. :-) Aug 22 20:23:09 Has anyone succeeded in getting a Beagleboard Rev. D to boot with a DTB? Aug 22 20:24:10 I'm using mainline 3.16, and it boots fine if I don't provide a DT blob. But if I feed it omap3-beagle.dtb, earlyprintk gives me "Warning: Neither atags nor dtb found" Aug 22 20:24:31 (That message is factually incorrect, by the way: I looked it up.) Aug 22 20:25:48 Doing a little more hacking, I've proven that setup_machine_tags() is matching the MACHINE_START entry for Beagle. Aug 22 20:26:57 So, I'm suspicious that the omap3-beagle.dts is mis-configuring something, or is just broken altogether compared to what's in the platform data. Anyone have a working one? Aug 22 20:27:46 Or, is Beagleboard Rev. D known to NOT work with flattened device trees? Aug 22 20:30:45 it works fine with dtb.. Aug 22 20:31:14 your probally overlapping memory regions in u-boot... pastebin.com your serial boot.. Aug 22 20:31:25 rcn-ee: Ok, just a sec... Aug 22 20:34:52 rcn-ee: thx for updating the bug tracker, it's much appreciated! Aug 22 20:35:19 http://pastebin.com/7kUtgDXG Aug 22 20:35:57 rcn-ee: I did a printenv to show you the backup information, but I drove the boot by hand with the commands at the bottom. Aug 22 20:36:31 That warning line is the very last thing that comes out, and everything stops after that. Aug 22 20:37:54 bgat, use: loadaddr=0x82000000 fdtaddr=0x88000000 instead of loadaddr=0x80200000 fdtaddr=0x80f80000 it should boot fine.. Aug 22 20:38:33 dtb's size has grown, so they end up overlapping and depending which you load first, looses Aug 22 20:41:19 rcn-ee: I'll try that right now. Aug 22 20:42:09 no problem wmat, they end up in my inbox so i take care of them.. Even if i'm half falling asleep. ;) Aug 22 20:46:57 rcn-ee: that got it. Thanks!! Aug 22 20:48:36 we should just ping mainline u-boot, it wasn't added to that board, as there are the very old 128Mb beagleboard variants, otherwise all 256mb and + devices got those values by default.. Aug 22 20:49:41 I had seen those values floating around, but they're so... large... compared to what I'm used to seeing, I didn't trust them. :-) Aug 22 20:57:41 bgat, there's a good read inside the commit for this change: http://git.denx.de/?p=u-boot.git;a=commitdiff;h=fb3ad9bd923daafed9818c579d841f05c8ecbeb0 Aug 22 20:59:17 rcn-ee: I'll check that out shortly. Aug 22 21:58:35 Is beaglebone white has android 4.4 Aug 22 22:00:25 is there any official android 4.4 for begalebone white released by TI Aug 22 22:00:29 ? Aug 22 22:02:10 is there any official android 4.4 for begalebone white released by TI ? Aug 22 23:02:25 What is the size specifications of the Beaglebone Black? Aug 22 23:02:30 *are Aug 22 23:03:40 is android 4.4 available on beaglebone white board ? Aug 22 23:17:14 arrrrgggggg if I have not said it before, I'll say it again...debian blows chunks Aug 23 01:13:51 I am very new to beaglebone and this chat, so here is my question. I would like to place a hex/binary 8 bit value on 8 gpio pins of my board to program old fashioned ram chips. Can anyone steer me in the right direction. **** ENDING LOGGING AT Sat Aug 23 02:59:58 2014