**** BEGIN LOGGING AT Sun Nov 30 02:59:58 2014
Nov 30 05:48:37 <warpalien> what is the purpose of the auto assigned up to usb0
Nov 30 05:48:49 <warpalien> I, sorry
Nov 30 06:10:18 <warpalien> what's the purpose of the usb0 ip address?
Nov 30 06:12:58 <warpalien> ssh?
Nov 30 06:13:44 <warpalien> just wondering, if I plug in a USB WiFi adapter, would it use that ip, or would it need another one
Nov 30 06:14:18 <tbr> that would need a different config
Nov 30 06:16:02 <warpalien> OK, thanks
Nov 30 15:14:17 <honestly> blargh.
Nov 30 15:14:33 <honestly> I got a library fuckup and valgrind doesn't work.
Nov 30 15:15:24 <honestly> any idea how I can debug/fix this? http://pastie.org/9752095
Nov 30 15:16:21 <honestly> everything seems to be EABI
Nov 30 15:41:52 <_av500_> is thta on the BBB?
Nov 30 15:41:58 <honestly> BB xM
Nov 30 15:42:15 <honestly> armel system
Nov 30 15:50:31 <honestly> normal valgrind package from armel repos
Nov 30 16:09:47 <tbr> armel, blast from the dark ages
Nov 30 16:10:06 <honestly> I wish
Nov 30 17:48:06 <Rubinstein> I'm trying to change keyboard configuration to spanish using dpkg-reconfigure keyboard-configuration but nothing happens any ideas?
Nov 30 19:53:24 <johnwalkr> quiet in here lately
Nov 30 19:53:28 <Peanut> Yup
Nov 30 19:53:35 <Peanut> Too busy coding stuff to chat ;-)
Nov 30 19:54:15 <johnwalkr> we tested a bb to 18krad
Nov 30 19:54:19 <johnwalkr> no issues
Nov 30 19:54:29 <Peanut> Planning to launch one?
Nov 30 19:54:46 <johnwalkr> no
Nov 30 19:55:13 <johnwalkr> my colleague has a satellite with 2 raspberry pis with no issues though
Nov 30 19:55:37 <Peanut> I didn't know that some Raspi's had already escaped from Earth!
Nov 30 19:55:42 <johnwalkr> i'm using one as a standin for future launch stuff
Nov 30 19:56:24 <johnwalkr> and gave it to a colleague to test for the purpose of nuclear disaster rescue robots
Nov 30 19:56:29 <Humpelstilzchen> if ever Aliens disect the rpi sats to detect our technology level..
Nov 30 19:57:07 <johnwalkr> the only reason rpi was chosen over bbb was because of the camera interface which saves a lot of heat dissipation over using usb
Nov 30 19:57:22 <johnwalkr> because rpi is more closed and has som i2c issues
Nov 30 19:57:41 <johnwalkr> so other than exposing a camera interface it is a bit hard to use
Nov 30 19:58:39 <johnwalkr> anyway BBB also survived thermal vacuum testing and vibration testing
Nov 30 19:59:21 <Peanut> I'm clearly way too careful with mine.
Nov 30 19:59:33 <Humpelstilzchen> johnwalkr: srsly? any docs on this?
Nov 30 20:00:45 <trev`ychase> whoa cool, I'd be curious to see what the full qualification for space is
Nov 30 20:00:58 <johnwalkr> no and i cant' say much more but it will be published soon
Nov 30 20:01:29 <johnwalkr> and it's not without extra preparations but stiff ncie results
Nov 30 20:01:37 <johnwalkr> still nice results*
Nov 30 20:04:33 <Peanut> I'm currently trying to get my BBB to sync to GPS PPS - I get NTPD to talk to gpsd (via shm) fine, but it always throws out my PPS source as 'falseticker' :-(
Nov 30 20:07:45 <kenrestivo> hmm, i discovered to my chagrin that if you open an fd to an i2cdev bus, and set the slave address, that's global to *all* open fd's, not just to that one
Nov 30 20:08:08 <kenrestivo> i.e. the slave address appears to be not thread-safe. :-/
Nov 30 20:08:28 <johnwalkr> what is fd?
Nov 30 20:08:33 <kenrestivo> file descriptor
Nov 30 20:09:18 <kenrestivo> i.e. the return value of  open("/dev/i2c-1", O_RDWR)
Nov 30 20:09:30 <Humpelstilzchen> kenrestivo: could do flock()
Nov 30 20:09:47 <kenrestivo> i could, and will, but, yecch
Nov 30 20:14:44 <Peanut> kenrestivo: eeks, good to know.
Nov 30 20:15:09 <kenrestivo> well, unless there's some other bug, or something weird. which is why i'm asking here, if anyone can confirm this.
Nov 30 20:15:29 <Peanut> Thread-safe is perhaps a bit much to ask for, given the bitrates involved, but it'd be nice if this was a per-connection thing.
Nov 30 20:16:04 <kenrestivo> i looked at the source code of the driver, and it seems that the slave is set locally to the open call
Nov 30 20:16:16 <kenrestivo> which is why i find this behavior surprising.
Nov 30 20:22:04 <chinna> Hello I am working on Beagle bone black REVC. I want to work on interrupt pacing. I like to reduce the number of receive interrupts to the core. could any one suggest how I can achieve thanks
Nov 30 20:28:16 <chinna> Any answers to my question
Nov 30 20:32:12 <kenrestivo> i dunno if that is a 4-minute question.
Nov 30 20:34:26 <chinna> Sorry I don't know much about this board and ethernet stuff. Take your time and please answer to my question
Nov 30 20:39:59 <adj> chinna: I'm curious: why and how much do you need to reduce interrupts?
Nov 30 20:42:21 <chinna> I will be running one process. If I get many interrupts (Receive packets) to the core, then core will service the interrupt request and will slow down my process.
Nov 30 20:42:47 <chinna> so I want to reduce the number of interrupts to the core such that latency of my process can be reduced.
Nov 30 20:43:13 <chinna> Hope my answer is clear
Nov 30 20:43:56 <adj> yank of the ethernet cable? :)
Nov 30 20:47:12 <chinna> :-) My professor is intelligent. He has constraints. Using iperf I will be measuring the network bandwidth. Network bandwidth should not go less that 8mbps in a 10 sec window :-)
Nov 30 20:47:40 <chinna> so I can think as minimum number of interrupts equal to I have to serve atleast 8mbps bandwidth :-)
Nov 30 20:55:41 <kenrestivo> have you.... tested it yet?
Nov 30 20:55:55 <kenrestivo> because you might not need to do anything to get that kind of throughput out of the box
Nov 30 20:56:21 <kenrestivo> it's a 1ghz sitara... if it can't handle 8mbps i'd be surprised
Nov 30 20:58:44 <Peanut> Well, that was fun, I was trying to get Ethernet-over-USB to work again on my mac. Typed 'ifconfig en3 192.167.7.2 netmask 255.255.255.252' - BAM, kernel panic, grey screen.
Nov 30 20:59:38 <Peanut> s/7.2/7.1/ of course.
Nov 30 21:00:59 <chinna> Sitara can handle more than 8mbps traffic. But I want to restrict it to support it to 8mbps so that I will get less number of interrupts to the core and reduces my process latencies
Nov 30 21:20:51 <chinna> I am reading online CPSW driver supports 10/100/1000 Mbps mode of operation. Could I know how I can check the current mode of operation. If I want to change to 10 Mbps mode, How I can do. Thanks
Nov 30 22:05:17 <ddrown> chinna: ethtool is the command line tool
Nov 30 22:22:48 <derRichard> who of you is using a dht22 sensor with the bbb? i'd like to know what kind of driver/software you're using? bitbanging using /sys/class/gpio/ is not really feasible
Nov 30 22:40:25 <agmlego> Why not?
Nov 30 22:42:46 <derRichard> agmlego: because it is too slow for many devices.
Nov 30 22:43:21 <agmlego> I had gathered that the DHT22 was a particularly slow device.
Nov 30 22:43:36 <agmlego> Are you actually seeing performance problems, or is this a theoretical concern?
Nov 30 22:44:15 <derRichard> agmlego: i'm facing horrible timeing issues with the device, yes....
Nov 30 22:44:28 <derRichard> and the kerenl mode driver is broken too
Nov 30 22:44:31 <derRichard> *kerenl
Nov 30 22:44:38 <agmlego> Intersting, and how are you trying to talk with it right now?
Nov 30 22:45:22 <derRichard> agmlego: this works best: https://github.com/lhuet/beaglebone-project/tree/master/DHT22 but is horrible hacky (see the mmap() games)
Nov 30 22:45:40 <derRichard> i'm about to fix the kernel mode driver but i need some feedback first.
Nov 30 22:45:49 <derRichard> see http://marc.info/?l=linux-kernel&m=141736459706870&w=2
Nov 30 22:46:17 <derRichard> that's why i'm asking how you guys use this sensor. as this sensor seems to be very common
Nov 30 22:48:15 <agmlego> I wonder how that code you linked compares to Adafruit's library. I have heard that works fine.
Nov 30 22:48:47 <agmlego> Looks like Adafruit's also uses memory-mapped IO.
Nov 30 22:50:06 <veremit> derRichard .. just reading https://groups.google.com/forum/#!topic/beagleboard/mtWNv8Gs1d4
Nov 30 22:50:22 <derRichard> agmlego: but using /dev/mem on a linux system is a major no-go. either you create sane kernel mode driver or a driver like uio with exports only the needed mapping to user space
Nov 30 22:50:31 <veremit> looks like timing is critical
Nov 30 22:50:54 <derRichard> veremit: that's what i see too
Nov 30 22:51:02 <agmlego> derRichard: ::shrugs::
Nov 30 22:51:12 <agmlego> derRichard: I rarely interact with the system on that level.
Nov 30 22:51:21 * derRichard works as kernel developer
Nov 30 22:51:26 <derRichard> i've seen a lot of crap
Nov 30 22:51:28 * agmlego can tell.
Nov 30 22:51:54 <agmlego> THis is why I am bowing out of the conversation; I have nothing to add now that it turns out you are actually competent at the task at hand. ;-P
Nov 30 22:52:01 <veremit> if you've gotta bit-bang the gpios .. thats a very messy way with a high-level processor
Nov 30 22:52:02 <derRichard> :)
Nov 30 22:52:14 <derRichard> yep
Nov 30 22:52:31 <veremit> so I kinda concur with a micro for more low-level interaction if you're set on that sensor .. or change sensor
Nov 30 22:52:43 <derRichard> i'm about to do that
Nov 30 22:52:45 <veremit> would be my 2c
Nov 30 22:52:57 <agmlego> Maybe a PRU driver for it.
Nov 30 22:53:06 <veremit> agmlego .. thats another option
Nov 30 22:55:18 <derRichard> next time i'll buy a sensor with a sane bus and not such a stupid bit-bang shite :)
Nov 30 22:55:27 <veremit> shit happens :)
Nov 30 22:56:16 <veremit> its catch-22 with the beagle .. its kinda an embedded board .. but for good io .. its not quite on the same level as an arduino, for example
Nov 30 22:58:01 <manuel___> it’s a much more complex processor, for sure, and it actually has an operating system
Nov 30 22:58:30 <manuel___> for a lot of smaller “things” the arduino is much easier to leverage for sure, so you can still do th ebetter of both worlds for example and use a bbb + arduino
Nov 30 22:58:34 <derRichard> yep. and you have to follow the rules of the os :)
Nov 30 22:59:29 <veremit> which is why something like the the Tre is so awesome .. http://arduino.cc/en/Main/ArduinoBoardTre
Nov 30 22:59:55 <veremit> but jkdridner won't say when its actually gonna be available (since he's the TI dude)
Nov 30 23:00:48 <manuel___> although to be honest you can get really far really quickly with the general purpose gpio and pwm kernel drivers
Nov 30 23:01:02 <manuel___> and i2c
Dec 01 00:50:46 <Quozl`> beaglebone black fedora 20 kernel support for usb desired, any pointers?
Dec 01 02:27:22 <spencer__> hello
Dec 01 02:28:16 <spencer__> putty will not login now to my beaglebone it was working just fine, is this an ip address issue?
Dec 01 02:31:03 <methuzla> any kind of error message?
**** ENDING LOGGING AT Mon Dec 01 02:59:58 2014