**** BEGIN LOGGING AT Thu Jun 02 02:59:58 2016 Jun 02 06:30:48 FYI: there is a bug in USB driver for beagle causing kernel panic when using usb webcam Jun 02 06:30:56 http://git.kernel.org/cgit/linux/kernel/git/gregkh/usb.git/commit/?h=usb-linus&id=04471eb8c3158c0ad9df4b24da845a63b2e8f23a Jun 02 06:31:04 this fixes it Jun 02 07:27:21 Hi, I want to discuss Babble Interrupt occured while using USB Hub. Jun 02 07:36:16 want to discuss Babble Interrupt Jun 02 08:48:09 Hello Jun 02 08:49:40 welcome, to the world of tomorrow™! Jun 02 09:39:03 HI Jun 02 09:41:29 lo Jun 02 09:42:53 I m trying to configure P8_45 pin "lcd_data0" to mode 7 "GPIO". i doing using bonescripts but it is not setting to mode 7 its remains in mode 0. could anyone please help me to overcome this issue Jun 02 09:44:55 http://beagleboard.org/Support/BoneScript/pinMode/ here i m sending the link of bonescripts. Jun 02 10:56:41 maciejjo: dma is disabled in all standard rcn kernels Jun 02 10:56:45 maciejjo: for usb Jun 02 10:57:08 so that bug would not manifest itself Jun 02 11:39:05 zmatt: Ok, this may be specific to linux-ti then Jun 02 11:40:14 zmatt: any specific reason why it is diabled? Jun 02 12:01:55 maciejjo: it was known to cause issues (perhaps including this one) and I've seen at least one report of someone who enabled it and discovered it actually made things slower Jun 02 12:03:53 maciejjo: both the -ti and -bone kernels have it disabled Jun 02 12:04:07 grep CONFIG_TI_CPPI41 /boot/config-$(uname -r) Jun 02 12:06:29 yes, but I am using TI supplied config from meta-ti Jun 02 12:06:32 ah Jun 02 12:07:04 maybe good opportunity to benchmark dma-enabled vs dma-disabled, to see what the current state is Jun 02 12:07:20 also don't forget to disable autosuspend, it tends to mess with cams Jun 02 12:07:38 also in config? Jun 02 12:07:46 or sysfs? Jun 02 12:07:57 sysfs or kernel cmdline Jun 02 12:08:01 usbcore.autosuspend=-1 iirc Jun 02 12:08:11 ok, thanks Jun 02 12:08:48 possibly it might be in kernel config too, since it seems the kernel I use on desktop has it disabled by default yet it doesn't appear on kernel cmdline afaik Jun 02 12:08:57 but i don't immediately see it Jun 02 12:09:33 anyway, bbl Jun 02 12:09:56 ok, thanks Jun 02 12:10:42 I'll try to benchmark it later with USB flash storage Jun 02 12:37:19 Hello, I have an FTDI cable using which I want to debug my beaglebone on MAC. Can someone suggest me the best way to do it? Jun 02 12:39:12 you hook up the USB connector to your mac and you hook up the UART side to the debug UART. Then you use a terminal emulator like putty, screen, minicom, etc Jun 02 14:25:03 das beag Jun 02 14:44:14 Hunderasse ? Jun 02 14:52:16 Hello Ragnorok Jun 02 14:57:05 So I made use of FTDI cable to debug the possible issue with the beaglebone black, It shows following errors: (1) bone-capemgr bone_capemgr.9: failed to load firmware 'BB-DCAN1-00A0.dtbo (2) bone-capemgr bone_capemgr.9: slot #9: BB-UART1 conflict P9.24 (#3:BB-BONE-LCD4-01) (3) bone-capemgr bone_capemgr.9: slot #9: Failed verification (4) bone-capemgr bone_capemgr.9: slot #10: BB-UART2 conflict P9.21 (#7:ADAFRUIT-UART2) (5)bone-capemgr Jun 02 14:57:35 can someone please help me out with this Jun 02 15:10:36 A__: what are you trying to do? out of context it's impossible to tell... Jun 02 18:07:38 I tried connecting an ethernet cable to my beaglebone, but for some reason I am not able to make SSH connection to it. I also tried connecting the LCD display , but on LCD all it shows is the linux logo at the boot up and then the screen remains blank forever. So, I made use of FTDI cable to debug the possible issue with my beaglebone black. With this cable I am able to access my beaglebone serially but I am not able to find an issue w Jun 02 18:08:42 What can be possibly done to make the BBB function normally? Jun 02 19:52:14 hi Jun 02 19:52:26 are open hardware schematics also provided for the Beagle Bone Green? Jun 02 20:17:57 a 10-second google immediately found http://www.seeedstudio.com/wiki/BeagleBone_Green#Resources Jun 02 20:18:37 zmatt: my apologies, I don't know why I didn't try google. I was navigating the beagleboard.org homepage Jun 02 20:18:56 I had a difficult time finding it on the homepage for the green boards. Next time I'll try google. Lol. Jun 02 20:18:59 :-) Jun 02 20:19:02 * zacts *blushes* Jun 02 20:19:07 :) Jun 02 20:19:44 Yeah I'm just so excited about all of this Jun 02 20:20:04 I was originally going to purchase an rpi, but now I'm getting a beaglebone green next Jun 02 20:20:13 I really like this community here Jun 02 20:21:14 why the green instead of the black? Jun 02 20:25:09 zmatt: I thought that green was newer Jun 02 20:25:22 should I get a bbb instead? Jun 02 20:27:05 the green is slightly cheaper, otoh it lacks hdmi output (which you may or may not care about), and some of the mods they did seem a bit iffy to me, like replacing the main crystal by a spread spectrum clock generator Jun 02 20:28:36 (the main crystal is supposed to provide a stable clock to feed into the PLLs of the am335x... if desired the individual PLLs can be configured to perform spread-spectrum clocking) Jun 02 20:29:29 they also removed the 5V dc barrel plug Jun 02 20:30:25 so I personally wouldn't go for a bbg Jun 02 20:31:09 huh so only pins 1 4 and 5 are connected on the bbb serial header? Jun 02 20:31:26 ayjay: sadly no hw flow control indeed Jun 02 20:31:46 hmm? Jun 02 20:32:24 oh is that what the extra pins are usually used for? rate negotiating? Jun 02 20:32:26 two of the other pins are rts/cts, but they're not connected on the header (nor on the am335x) Jun 02 20:32:43 which is annoying when e.g. copy-pasting commands into u-boot Jun 02 20:32:57 i can deal with that but this ftdi connector has red wire with 5v on it Jun 02 20:33:05 so i'm nervous to connect it Jun 02 20:33:06 that pin is not-connected Jun 02 20:33:10 on the bbb Jun 02 20:33:23 the header is designed for that ftdi cable, don't worry Jun 02 20:33:44 in fact the console buffer IC is also 5v tolerant Jun 02 20:33:47 thats the confirmation i was looking for before i risked shocking my board Jun 02 20:33:57 ZMATT WHY DO YOU KNOW EVERYTHING Jun 02 20:34:04 always good to check, not much on the BBB is 5v-tolerant Jun 02 20:34:05 lol Jun 02 20:34:16 it gets ridiculous at some point Jun 02 20:34:26 I call experience. Jun 02 20:36:46 I've had some funny times on TI's E2E forums too... "someone: how do I do ?" "TI support guy: I'm afraid that's not possible" "me: sure it is, you configure that in the undocumented register at
, here's its bit allocation..." Jun 02 20:37:11 lol Jun 02 20:55:50 zmatt++ Jun 02 20:58:59 is that the objected oriented version? Jun 02 21:00:03 ayjay: you should try it .. Jun 02 21:00:03 who knows what he have to enable besides cdc_eem and cdc_subet in kernel (on desktop side) to use ethernet over usb (assuming bbb has stock image loaded)? Jun 02 21:00:35 libcomposite or whatever it is? Jun 02 21:01:12 first i've heard of it Jun 02 21:01:19 personally, I really like Ethernet-over-ethernet and Usb-over-usb and gpio-over-gpio and power-over-power with power-over-ethernet as a second best Jun 02 21:01:48 but them direct copper wires really take some beating ... Jun 02 21:02:36 ayjay: on the desktop side you don't have to enable anything, those drivers get automatically loaded when the usb device is detected Jun 02 21:02:49 i installed gentoo Jun 02 21:02:53 zmatt: you hope ... Jun 02 21:03:06 ayjay: so? there's no reason not to compile that stuff as modules Jun 02 21:03:08 and i stripped my kernel to baremetal and i've been enabling whatever drivers i need as i go Jun 02 21:03:28 ayjay: eem is btw not used on a stock bbb Jun 02 21:03:39 yeah you can tell i'm a little confused Jun 02 21:03:56 so compile the whole bunch as modules and let the kernel figure it out for you at runtime Jun 02 21:04:02 stock bbb is stillusing usb_gadget no? Jun 02 21:04:15 freakin zmatts right Jun 02 21:04:27 veremit: g_multi yes Jun 02 21:04:30 that is really the only way Jun 02 21:05:00 usb bits-and-pieces and rndis and all that crap is really .. well .. basically .. you read the usb books and/or take guesses :D Jun 02 21:05:10 yeah it's a lot Jun 02 21:05:16 i've been having good success with just enabling what i need as i go Jun 02 21:05:17 I'm beginning to realise I probably ought to buy the book Jun 02 21:05:44 bedtime technical reading :D Jun 02 21:05:54 veremit: so that's rndis/cdc_ecm + cdc_acm + mass storage Jun 02 21:06:20 zmatt: in kernel 4.4+ or <=4.x ? Jun 02 21:06:45 kernel not relevant, it's userspace that chooses to use that driver Jun 02 21:06:54 well, rndis needs to be enabled in kernel, but it is Jun 02 21:07:02 I've not seen eem in any kernels I've built .. Jun 02 21:07:04 or ecm Jun 02 21:07:23 acm, sure Jun 02 21:07:29 oh maybe I'm confused and g_multi uses rndis-only Jun 02 21:07:30 mass storage, ofc. Jun 02 21:07:38 then it's g_ether that's rndis/cdc_ecm Jun 02 21:08:03 but I hate the six combinations in the kernel config Jun 02 21:08:22 libcomposite is the alternative Jun 02 21:08:37 right, but thats relatively recent... Jun 02 21:08:57 and probably "better" tbh Jun 02 21:10:20 alright lets restart and see how it goes Jun 02 21:17:49 Noticed that on a recently reinstalled beagbebone the capemngr is no longer there (nothing directory /sys/devices/bone_capemgr.* (/slots) present). -- has it moved - or what is the magic google query to understand the change (I want to enable SPI again). Jun 02 21:18:38 ls /sys/devices/platform/bone_capemgr probably? Jun 02 21:19:10 Thanks ! And apart from that - no fundamental changes ? Jun 02 21:20:02 images tend to enable cape_universal, you may want to disable that (check cmdline in /boot/uEnv.txt) Jun 02 21:21:53 zmatt: Thanks - that seems indeed to be exactly what is required. Lovely. Jun 02 21:48:28 so about that usb book... Jun 02 23:06:21 eureka! Jun 02 23:52:39 you have found it? Jun 02 23:55:37 found What.... Jun 03 00:14:58 hooliganism is actually quite old... "one of the earliest known instances of crowd violence at a sporting event took place in ancient Constantinople. Two chariot racing factions, the Blues and the Greens, were involved in the Nika riots which lasted around a week in 532 CE; nearly half the city was burned or destroyed, in addition to tens of thousands of deaths." Jun 03 00:23:51 zmatt: not remotely surprised .. Jun 03 02:57:18 Is there a way to get the latest 2gb debian image to flash on onto the old rev of BBB? The instructions appear to not be corret for the older version. **** ENDING LOGGING AT Fri Jun 03 02:59:58 2016