Tuesday, 2013-03-05

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mranostayprpplague: so what temp is the heatsink under  heavy load?02:47
prpplaguemranostay: i am not running any thermal testing as of yet02:48
mranostayok if i touch the heatsink will it be uncomfortable? :)02:49
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mranostaywb koen04:21
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mranostayand davest04:23
mranostayprpplague: another dumb question.. do lures use I2C EEPROM for ID?04:24
prpplaguemranostay: i am populating them with a 256k eeprom similar to the beaglebone cape, however the exact contents have not been decided as of yet04:26
mranostayprpplague: well i do like how the beaglebone capes had a lot of data that nobody sets in the EEPROM :)04:27
mranostayor even parses04:27
mranostaypinmux setup and etc04:27
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* av500 is offended07:31
mranostayav500: quiet you07:31
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jayabharathhello all!15:34
* jayabharath recognizes a lot of familiar folks hanging around here.. and is glad to be in familiar territory15:34
koenjayabharath: welcome!15:38
jayabharathkoen, hello bud15:39
jayabharathI missed ELC this year (for obvious reasons TI did not pay me to go there :D )? so was minnow announced there? And it looks like you have a minnow as a target platform in Yocto15:41
* jayabharath needs to catchup on the new on this front...15:41
koenit was indeed announced at ELC15:41
koens/Yocto/OE/ :)15:42
jayabharath:D15:42
av500what is yocto anyway?15:42
* jayabharath is wearing a yocto tee shirt right now that was given to him when yocto was announced in ELC a while back.. 15:43
jayabharathwhere are the board samples expected or are they out already.. Looks like a nice board to play with...15:44
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prpplaguekoen: http://www.elinux.org/Minnow_Lures_Spec#Lure_Types16:28
av500pictures would be nice16:32
dm8tbrdifferent connectors?16:32
prpplaguedm8tbr: yea16:32
prpplagueav500: mockup pictures are on the way16:32
prpplagueav500: tomorrow16:32
prpplaguedm8tbr: for height restrictions16:33
dm8tbralso I guess you might want to mention the type of connector for on top of the lure for stacking (optional)16:33
mranostayheh16:33
prpplaguedm8tbr: ahh right will do16:33
koenI had another bright idea today16:33
koen*drumroll*16:33
* dm8tbr has done his good channel deed for today and goes back to lurking16:33
prpplaguewait for it16:33
prpplaguewait for it16:33
prpplaguewait for it16:34
koena thunderbolt cape16:34
av500no16:34
dvhart:)16:34
av500a lighning cape!16:34
prpplaguedm8tbr: hehe16:34
koenehm16:34
dvhartSomeone beat you to that on my G+ feed ;-)16:34
koens/cape/lure/16:34
prpplaguekoen: several comments on dvhart 's g+ mentioned that16:34
dvhartkoen, you mentioned Up/Down mapping for the buttons by default. I'm wondering if BTN1 BTN2 (or similar) would be better to make it easier to remap to something else without having to do it per-input-device16:35
koenah, the original post16:35
koenI'm not up to date how remapping works16:36
koenbut I'm guessing a udev rule would work best, and you can trigger that based on the device ID16:37
koenat the first "I can't read the button from /sys/class/gpio, everything is broken" remark I'm going to hire a ninja to shut those people up16:38
dvharteek, afk for a bit16:38
koenthere are university courses where they patch out gpio-keys to "be able to read the button"16:39
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koen(for beagle)16:39
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koenand later complain that's you need to poll sysfs for events16:39
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koenhmmm17:05
koenthunderbolt seems to require PCIe x217:05
koenand the "cheap" eagle ridge is $3017:06
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prpplaguekoen: yea i ran into that last night17:47
prpplaguekoen: i posted a hacked evtest for someone17:47
prpplaguekoen: yea i used it as a diversion last night17:48
dvhartso first off, you can use the sysfs interface without polling as I understand it17:48
dvhartsecond, I'm also OK with using gpio-keys17:49
dvhartI'm not up to speed on what users expect in general17:49
dvhartbut I do want it to be generally accessible out of the box17:49
dvharteasy to tie into and use17:49
prpplaguedvhart: btw, we need to know how big the ssdt binaries might be in the long term17:55
prpplaguedvhart: so we can judge what size of eeprom we might need to spec out17:56
* prpplague goes to get some pcbs17:56
prpplaguebbiab17:56
dvhart50MB should cover it17:56
* dvhart waits for it.....17:56
dvhartprpplague, I have that number, just need to dig it up - was really quite small.18:00
koendvhart: /sys/class/gpio is like a hammer18:06
koendvhart: once you teach that to people they thing everything is a nail18:06
dvhart:)18:06
dvhartI'm fine with gpio-keys18:06
dvhartit's trivial to setup18:06
dvhartjust need to decide if UP/DOWN or BTN1/BTN2 makes more sense18:07
* koen takes a hammer to sstate18:09
koenI patched linux-yocto for minnow18:09
koentriggers a world rebuild for beaglebone18:09
* koen is not liking 1.318:10
* koen is tempted to branch early for 1.418:10
dvhartkoen, is that the patch you sent me?18:11
dvhartkoen, oh yes please18:11
dvhartthe only reason I'm on danny is because you said you didn't have a 1.4 for angstrom18:11
koenand 1.4 is $*(#$*(#@ broken18:11
dvhartbugs filed I presume? any particular one causing you grief?18:12
koenbroken upgrade path for systemd18:12
koenwell, broken integration of systemd in general18:13
dvhartOK, not something I'm involved with. I know Ross and others have been looking at it. Are you seeing something which you feel isn't being investigated?18:14
koenyes18:14
koenpatch was sent for review18:14
koenNAK'ed by every meta-systemd user18:14
koenstill went in18:14
koenRP goes "you guys should have spoken up during review"18:15
koenaneurisms popping all around18:15
dvhartOK, well, without all the context I don't think I have anything to add18:16
dvhartbut sounds like something we are going to have to address at some point18:16
koenI wasn't involved either, but I get all the "hey, you're attending ELC, can you voice our frustation?" requests18:16
mranostayheh18:24
* mranostay grabs popcorn18:24
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zenlinuxI seem to recall Matthew M asked a question on G+ about what the MinnowBoard is - but now I can't seem to find any posts to that effect18:41
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prpplaguedvhart: hehe 50mb sounds good, hehehe18:43
dvhart;)18:49
mranostayso can device tree help here? :)18:49
dvhartmranostay, I think you're trolling, but I'll answer anyway. DT and SSDTs provide the same basic functionality through different mechanisms.18:50
dvhartThe Minnow is UEFI based which implies ACPI, which makes the SSDT the natural choice.18:51
dvhartoh, obligatory emoticon to follow     :-)18:51
mranostaydvhart: i never troll :)18:52
* dvhart goes to prep the gpio mapping18:52
* mranostay googles SSDT18:53
mranostaydvhart: do lures come into play wiht SSDT?18:54
prpplaguemranostay: we haven't nailed that down yet18:55
prpplaguemranostay: i've only been on the  job with it for 3 days, give me time, hehe18:55
dvhartmranostay, the original plan was the EEPROM *can* be programmed with an SSDT which can be used to describe the Lure.18:56
dvhartbut it isn't required as that can be done in the kernel in other ways for prototyping18:56
dvhartbut this would be nice for mass produced boards18:56
dvhartas well as for hobbyists that wanted to do this18:56
dvhartI would also like to enable a means to just pass in SSDTs via the boot loader in initramfs blobs18:57
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dvhartbut as prpplague says, we're nailing this all down still18:57
mranostaykinda like beaglebone capes only different18:57
mranostayprpplague: be sure not to mess up the SSDT programmed on the card :)18:59
prpplaguemranostay: hehe18:59
prpplaguemranostay: indeed18:59
ds2has any thought of doing a vortex86 board?18:59
ds2x86 but more embedded19:00
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mdpds2, do the 386sx version so I can replicate my first minix/linux box19:05
mranostayprpplague: of course you need a blacklist failsafe in SW/kernel19:06
mranostaylike board XYZ rev XYZ has bad EEPROM config override with this one19:07
prpplaguemranostay: yea i am not going in depth as current implementations for the cape style stuff atm19:09
prpplaguemranostay: mainly getting the core components there19:09
prpplaguemranostay: panto is going to deal with more of the software issues19:09
mranostayoh good i can bug him19:09
ds2souce some 386sx's thenwe will talk19:10
ds2the vortex86 is a real soc19:11
mdphttp://www.dmp.com.tw/ M6117D :)19:12
ds2know about them19:12
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prpplaguedvhart: http://www.elinux.org/Minnow_Lures_Spec19:25
prpplaguedvhart: progressing19:25
dvhartack19:27
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mranostayprpplague: seems like it would be tricky to use multiple lures19:34
prpplaguemranostay: indeed there are some things that need to be worked out19:35
prpplaguemranostay: the cape design didn't happen over night19:35
mranostayprpplague: stop slacking :P19:35
mranostayprpplague: well the capes aren't using connecters rated for high speed signals so simple19:37
mdpsounds like the intention is to pass SSDTs describing things like a platform device that uses, say, a spi device. is that correct?19:39
prpplaguemdp: that is my current understanding19:41
prpplaguemdp: though i am approaching this from an arm perspective19:41
prpplaguelittle bit of a learning curve19:41
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calculustry the leg perspective19:43
mdplinaro is already punning on that one19:44
mdptoo late!19:44
calculusdangit... how about the hammer perspective19:44
calculusalthough I suppose TCT did that already19:45
mdpheh19:48
prpplaguetct has the hammer19:48
mdpprpplague: yeah, so I was thinking about the st7735fb driver on here. trying to wrap my head around instantiating a device for that driver.19:49
prpplaguemdp: ahh that would be a great demo item19:51
mdpthe resources are there19:52
mdpit's just hook-up19:52
mdpand maybe I'll finally get it submitted this round19:52
prpplaguekoen: http://www.elinux.org/Minnow_Lures_Spec19:57
prpplaguekoen: need feedback when you have time19:57
mranostayprpplague: kerning is off20:04
mranostayprpplague: beacon lure isn't that overkill? :)20:04
prpplaguemranostay: educational tool, simple and easy to implement. easy to use as an example of x86 with low level I/O20:19
calculusfpga lure with hdmis ala netv would be cool20:24
prpplaguecalculus: email me info!20:24
prpplaguecalculus: danders@circuitco.com20:24
prpplaguecalculus: i've got your other comments as well20:28
prpplaguecalculus: i'll be answering those on the wiki page20:28
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mranostayprpplague: so silly question any lure to cape adapter?20:49
* mranostay ducks20:49
mranostayyes i know pinmuxing probably makes that impossible :)20:49
dvhartw00t, SUS[8] is working again20:56
dvharts/again$//20:56
dvhart9 gpio lines.... 8 bits.... oops.20:56
prpplaguedvhart: pictures of the different lure sizes up21:01
prpplaguedvhart: doh!21:02
prpplaguejayabharath: hey bud!21:11
prpplaguejayabharath: greetings!21:11
prpplaguejayabharath: glad you joined in21:11
dvhartprpplague, yeah, C needs mount holes or to be eliminated and assumed by B21:18
dvhartprpplague, can you put up some kind of "WORK IN PROGRESS" warning on that page please?21:20
prpplaguedvhart: C is pretty small, and the connector is locking so it is pretty solid even without the mounting21:20
prpplaguedvhart: will do21:20
dvhartthanks!21:20
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mranostayprpplague: so 3.3v logic but not 5v tolerent right?21:43
prpplaguemranostay: correct21:44
prpplaguemranostay: if you need +5v TTL use a level shifter21:44
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