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| 15:10.45 | *** topic/#maemo is Welcome to #maemo http://maemo.org/intro/ -- N9/harmattan related questions please in #harmattan ! | http://wiki.maemo.org/Community_Council | Source: http://wiki.maemo.org/Sources | Chanlog: http://mg.pov.lt/maemo-irclog | #maemo-ssu is where the (few) devels and maintainers of the maemo-future meet |
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| 15:38.59 | kerio | is the lumia selling? |
| 15:39.01 | RiD | no |
| 15:39.12 | kerio | fuckin' elop |
| 15:39.13 | RiD | well, not on my country |
| 15:39.23 | RiD | I have yet to see someone using a Nokia windows phone |
| 15:39.28 | RiD | (on my country that is) |
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| 15:49.22 | StyXman | I have only seen it in hands of qt/kde developers |
| 15:53.46 | GeneralAntilles | Jaffa, no worries. That's why we have more than one editor. ;) |
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| 16:13.50 | Jaffa | GeneralAntilles: Top tip, monitor the output after 6am UTC - MohammadAG's username is Mohammad7410 |
| 16:14.20 | GeneralAntilles | Jaffa, I think that was fiferboy. |
| 16:14.40 | GeneralAntilles | I saw him change it but didn't have the presence of mind at the time to notice. |
| 16:18.59 | GeneralAntilles | Jaffa, by the way, does the editor field accept multiple editors? |
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| 16:26.10 | X-Fade | Pali: can you push kps 0.15 again? |
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| 16:26.31 | Pali | X-Fade, ok I will push kernel-power-settings 0.15 again |
| 16:26.51 | X-Fade | Pali: -source is in packages now. |
| 16:27.07 | Pali | X-Fade, kernel-power-settings was uploaded |
| 16:27.35 | X-Fade | Pali: Ok, let's see what happens. |
| 16:27.50 | X-Fade | Going to get me something to eat and will check afterwards :) |
| 16:28.57 | Pali | X-Fade, thanks |
| 16:29.14 | Pali | Now I will upload kernel-power v51 to extras-devel again |
| 16:29.59 | Pali | X-Fade, [2012-07-16 19:28:04] REJECTED: The same or newer version (kernel-power-settings 0.15) is already in extras-devel |
| 16:30.58 | Pali | X-Fade, other error. kernel-power v51 is still uploading to extras-devel but I received email: [2012-07-16 19:30:01] REJECTED: 'File size for /mnt/incoming-builder/fremantle/kernel-power_2.6.28.orig.tar.gz does not match that specified in .dsc' |
| 16:31.13 | X-Fade | Pali: Deleting the entry in packages atm. |
| 16:31.39 | Pali | I stopped uploading |
| 16:32.01 | X-Fade | Pali: try kps again? |
| 16:32.17 | Pali | kps pushed again |
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| 16:33.27 | X-Fade | Pali: Oh, hmm it _was_ in the repo.. Other issue for me to check then.. |
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| 16:34.09 | jean_brat | h e n is not available in default n900 repository |
| 16:34.12 | jean_brat | ? |
| 16:34.19 | jean_brat | i cant find it in application manager |
| 16:36.07 | ShadowJK | extras-devel |
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| 17:01.32 | Jaffa | GeneralAntilles: Not sure, would have to check the source |
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| 17:02.03 | Jaffa | GeneralAntilles: No, currently it only supports one editor. |
| 17:05.15 | jean_brat | hi i cant find h e n in repositary can any one tell me where i can download? |
| 17:05.39 | jean_brat | i got disconnected earlier. if any one answered |
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| 17:08.38 | jean_brat | can any one send me the link to configure extra devel |
| 17:08.39 | jean_brat | ? |
| 17:12.57 | kerio | jean_brat: you have to enable the extras-devel repository, you can find instructions on the maemo wiki but are you sure you want to? it's not guaranteed to be reliable software |
| 17:13.04 | kerio | (the whole repo, i mean) |
| 17:13.15 | kerio | if you're ok with living on the "bleeding edge", as they say... |
| 17:13.27 | kerio | http://wiki.maemo.org/Extras-devel |
| 17:14.45 | jean_brat | just wanted to get the h e n |
| 17:14.55 | jean_brat | cant find it in usal repo |
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| 17:25.12 | vi__ | HOLY SHIT! |
| 17:25.37 | vi__ | TWO THOUSAND EUROS!! For an N950! |
| 17:27.27 | vi__ | ~seen freemangordon |
| 17:27.33 | infobot | freemangordon <freemangor@130-204-50-168.2074221835.ddns.cablebg.net> was last seen on IRC in channel #maemo-ssu, 6d 9h 58m 10s ago, saying: 'kerio: no KP51 for you :P'. |
| 17:27.44 | vi__ | ~seen _freemangordon |
| 17:27.44 | infobot | _freemangordon <freemangor@130-204-50-168.2074221835.ddns.cablebg.net> was last seen on IRC in channel #maemo-ssu, 7d 3h 12m 54s ago, saying: 'Raimu: yep'. |
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| 17:38.41 | javispedro | Interesting (re 2000 for the N950) |
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| 17:39.59 | javispedro | I have to ponder which kind of idiot^Wperson is buying those things |
| 17:41.04 | javispedro | .oO (eur2000 ... could probably buy laptop.... ) |
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| 17:44.03 | kerio | for €2000 you could almost buy a rMBP! |
| 17:44.28 | vi__ | wtf is an rMBP? |
| 17:44.41 | kerio | retina macbook pro |
| 17:44.53 | vi__ | pffft. |
| 17:44.58 | kerio | 15" laptop, 2880x1800 screen |
| 17:45.14 | vi__ | I would rather have a road legal KDX220 |
| 17:45.19 | RiD | hello guys |
| 17:45.31 | RiD | i need some help :D |
| 17:45.46 | RiD | how can i have a special keyboard layout to use when i connect an external keyboard? |
| 17:46.01 | RiD | and of course, an easy way to switch between the default n900 keyboard layout and the external one |
| 17:48.06 | RiD | nevermind, i think i saw the solution already |
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| 17:56.25 | beford | 2000 € for what |
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| 17:56.52 | RiD | for a huge display |
| 17:56.57 | RiD | that most websites won't like anyways |
| 17:57.13 | RiD | resolution* |
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| 17:59.06 | RST38h | Meanwhile: NBC Purchases MSNBC Rights From Microsoft |
| 18:00.39 | GeneralAntilles | Extra fail. |
| 18:00.51 | javispedro | kerio: wait for the 13'' one |
| 18:01.18 | javispedro | kerio: then you'll be able to :) |
| 18:01.25 | wmarone_ | heh |
| 18:01.36 | wmarone_ | the "MS" in "MSNBC" hasn't been relevant for the better part of a decade or more |
| 18:03.15 | RiD | so now it's |
| 18:03.16 | RiD | NBC |
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| 18:10.37 | RiD | hey guys, i got a great wireless keyboard working on the n900 |
| 18:10.47 | RiD | it also includes a trackball, and it is working, however it is VERY sensitive |
| 18:11.05 | RiD | making it impossible to move the mouse around without going to the borders. Is there any way to adjust mouse sensitiveness? |
| 18:11.25 | RiD | move the arrow* |
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| 18:16.05 | RiD | and sadly the mouse buttons don't seem to work. Instead of clicking it moves the mouse diagonally |
| 18:22.49 | kerio | javispedro: meh, 15" is too small alreadty |
| 18:22.52 | kerio | *already |
| 18:23.06 | kerio | it's an effective 1440x900 resolution, just with very detailed subpixels |
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| 18:27.24 | GeneralAntilles | wmarone_, the whole network is irrelevant. ;) |
| 18:28.04 | wmarone_ | That too |
| 18:28.15 | wmarone_ | But MSNBC was moot when MSN died. |
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| 18:31.58 | javispedro | GeneralAntilles: the monday mourning photo is quite a hit :) |
| 18:32.19 | Stskeeps | that was such a bad morning |
| 18:32.23 | GeneralAntilles | javispedro, indeed. |
| 18:32.40 | GeneralAntilles | javispedro, that was inspired creativity by Jaffa. :D |
| 18:33.34 | javispedro | I can imagine, I was at the dublin keynote =) |
| 18:34.05 | RiD | a |
| 18:34.11 | javispedro | so if it was the same guy it must have been truly hilarious. |
| 18:34.30 | GeneralAntilles | Dublin was better |
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| 18:34.50 | GeneralAntilles | at least there wasn't the overwhelming manic melancholy in Dublin. |
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| 18:36.28 | javispedro | meh |
| 18:37.19 | wmarone_ | GeneralAntilles: well, the axe hadn't fallen yet |
| 18:38.32 | GeneralAntilles | wmarone_, exactly. |
| 18:39.26 | wmarone_ | though it was funny seeing the same keynote two years in a row, albeit with less broken-leg the second time around |
| 18:41.36 | freemangordon | ~seen zeq |
| 18:41.44 | infobot | zeq <~steve@cpc19-rdng21-2-0-cust106.15-3.cable.virginmedia.com> was last seen on IRC in channel #maemo, 9d 3h 25m 59s ago, saying: 'BlueMaemo does it over bluetooth'. |
| 18:42.06 | freemangordon | WTF has happened to this guy?!? |
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| 18:44.10 | RiD | lol |
| 18:44.39 | RiD | oh by the way freemangordon, if you wouldn't mind, could you help me? :D |
| 18:44.52 | freemangordon | i could try :) |
| 18:45.06 | GeneralAntilles | How many people caught Zemlin's "Something about a fire." comment during the keynote in SF? |
| 18:45.23 | RiD | Well, i got a nice external keyboard that I connected using h-e-n, got the layout sorted out so everything is working fine. |
| 18:45.40 | RiD | but it also contains a trackball, and that also works, but it is way too sensitive to handle |
| 18:46.15 | RiD | and the buttons for the trackball don't work. It seems to drag the mouse a few pixels instead |
| 18:46.19 | freemangordon | you could try to set sensitivity in HAL script |
| 18:46.27 | freemangordon | same for the buttons |
| 18:47.59 | freemangordon | RiD: Check the contents of /usr/lib/hal and/ot /usr/share/hal (iirc) for examples |
| 18:48.58 | RiD | will do. Accidentally rebooted my phone (sigh) |
| 18:54.19 | freemangordon | RiD: another example here:http://jasonxh.blogspot.com/2008/02/slow-down-your-evdev-mouse.html |
| 18:57.12 | RiD | i am now officially lost |
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| 19:01.00 | freemangordon | RiD: why? what you need is a HAL FDI script. Another option could be an udev rule, never used it though. |
| 19:03.30 | RiD | so, would evdev-speed-1.1.5.patch provided on that blog work? |
| 19:04.21 | freemangordon | RiD: NFC, that was just an example on how should an HAL FDI script look like |
| 19:07.03 | RiD | the problem is that I don't know how to make a script. I don't know how to script at all |
| 19:08.41 | freemangordon | RiD: by using a text editor (leafpad, mcedit, whatever you want that saves the files with UNIX line endings) |
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| 19:15.55 | vi__ | freemangordon: email! |
| 19:16.05 | vi__ | no email here. |
| 19:17.40 | freemangordon | vi__: yep :P |
| 19:18.06 | freemangordon | but it was a mail asking for my address and phone number |
| 19:19.03 | freemangordon | Maybe they have yours. You live in Papua New Guinea, ain't? :D:D:D |
| 19:19.15 | vi__ | nope. |
| 19:19.40 | vi__ | did you see an N950 sold for 2000 euros? |
| 19:20.52 | freemangordon | no. 2000 euros? WTF, this guy should be crazy. |
| 19:21.33 | Pali | good business :D |
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| 19:24.26 | freemangordon | Pali: the error you have is not woth modules.dep |
| 19:24.38 | freemangordon | look at the end of the file |
| 19:25.02 | freemangordon | Pali: "no such file" |
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| 19:30.45 | freemangordon | Pali: maybe you should have the path to kernel-power-headers too |
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| 19:47.03 | jonwil | ok, I give up. Finding the formula to convert battery temperatures inside BME is too hard. |
| 19:48.33 | freemangordon | jonwil: hmm, why is that? Couldn't we just compare get the output from ADC for several points wna approximate it with a second/third order polinomial? |
| 19:48.49 | jonwil | \maybe |
| 19:49.54 | freemangordon | jonwil: do you have the code to read the ADC? |
| 19:50.09 | jonwil | but I think better idea might be to find the part number for (and datasheet of/specs of) R1110 (listed on the schematics as the temperature sensor and directly connected to the ADC input) |
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| 19:50.51 | freemangordon | sure, but do we have any clue what is the chip? DocScrutinizer06: ^^^ |
| 19:51.07 | jonwil | the temprature sensor is listed on the schematics as R110 |
| 19:51.10 | jonwil | R1110 |
| 19:51.18 | jonwil | its a 10k something |
| 19:51.22 | freemangordon | hmm, lemme ask google |
| 19:51.27 | jonwil | I am guessing the 10k might be in ohms |
| 19:51.36 | DocScrutinizer06 | a 10k NTC or PTC |
| 19:51.43 | jonwil | aha, I think its some sort of thermistor |
| 19:51.50 | DocScrutinizer06 | no way to find out about the type |
| 19:52.42 | jonwil | if we had a part number for the thermistor we could come up with the formula that maps resistance to temprature |
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| 19:54.19 | freemangordon | jonwil: But how we are supposed ti find that, r1110 has nothing to do with part number :( |
| 19:54.44 | freemangordon | I still think it is better to just approximate it |
| 19:56.46 | vi__ | freemangordon: how did you fennec version come along? |
| 19:57.50 | freemangordon | vi__: I was on holiday for the last week |
| 19:58.25 | vi__ | ~seen _freemangordon |
| 19:58.32 | infobot | _freemangordon <freemangor@130-204-50-168.2074221835.ddns.cablebg.net> was last seen on IRC in channel #maemo-ssu, 7d 5h 43m 42s ago, saying: 'Raimu: yep'. |
| 19:58.42 | vi__ | 7days= q week. |
| 19:58.48 | vi__ | 7days=1 week. |
| 19:58.52 | vi__ | seems legit |
| 19:58.59 | Raimu | Immortalized highlight. Inconvenient. |
| 19:59.50 | merlin1991 | Raimu: DocScrutinizer had a highlight that got said by infobot like 20 times :D |
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| 20:01.22 | vi__ | is a thumb compiled browserd possible or is there too much closed source douchebaggery? |
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| 20:03.20 | Raimu | vi__: Hey, freemangordon did it already. |
| 20:03.42 | Raimu | ...or was it just some other part of microb? |
| 20:03.53 | Raimu | Shrugged |
| 20:03.59 | vi__ | are you jerking my chain? |
| 20:06.09 | Raimu | I was just fazed for a while over whether you meant microb, because that's released, already. |
| 20:07.14 | Raimu | Then I went "oh right, they're separate components" |
| 20:07.18 | DocScrutinizer06 | jonwil: we don't have that part number |
| 20:07.31 | jonwil | ok |
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| 20:08.16 | freemangordon | jonwil: do you have the code to read ADC BSI? |
| 20:08.23 | jonwil | no |
| 20:08.31 | jonwil | I dont have any bme related code as such |
| 20:08.58 | DocScrutinizer06 | so get 3 support points by using a thermometer and your fridge / warm place. Find diagram of a random NTC/PTC and stretch it so the 3 support points match |
| 20:09.19 | freemangordon | jonwil :) I know, my question could be read as: Did you RE the code to read ADC? |
| 20:09.29 | jonwil | no |
| 20:09.33 | freemangordon | ok |
| 20:09.46 | freemangordon | jonwil: do you plan to RE it? |
| 20:09.46 | DocScrutinizer06 | s/random/random 10k/ |
| 20:09.47 | jacekowski | reading adc is easy |
| 20:09.52 | jacekowski | you can get to it via /sys iirc |
| 20:09.57 | freemangordon | jacekowski: no |
| 20:10.02 | freemangordon | you can't |
| 20:10.05 | jacekowski | yes you can |
| 20:10.07 | jonwil | you can get to it via /dev/twl2040-adc or something |
| 20:10.22 | jacekowski | it's standard i2c chip |
| 20:10.25 | jacekowski | specs are public |
| 20:10.28 | jacekowski | there is no need to RE it |
| 20:10.29 | DocScrutinizer06 | anyway you need ioctl to read it |
| 20:10.33 | freemangordon | jacekowski: ^^^ |
| 20:10.36 | jacekowski | and all the stuff is there |
| 20:11.00 | DocScrutinizer06 | jacekowski: twl4030 is not THAT standard ;-) |
| 20:11.07 | jacekowski | standard enough |
| 20:11.13 | freemangordon | AFAIK there is an ioctl to read all ADC inputs , raw data |
| 20:11.24 | jacekowski | yes |
| 20:11.33 | jacekowski | BSI is just a resistor |
| 20:11.34 | jacekowski | that's all |
| 20:11.44 | jonwil | battery temprature gauge is a thermistor |
| 20:11.45 | freemangordon | BSI is thermistor |
| 20:11.52 | DocScrutinizer06 | we're not talking BSI |
| 20:11.59 | DocScrutinizer06 | though it's kinda similar |
| 20:12.04 | jonwil | the schematics say its a thermistor |
| 20:12.08 | jacekowski | where |
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| 20:12.21 | jacekowski | according to all measurments done by me and other people |
| 20:12.23 | jacekowski | that's a resistor |
| 20:12.29 | jacekowski | and it's specific to battery type |
| 20:12.36 | jonwil | not BSI |
| 20:12.40 | jonwil | battery temprature sensor |
| 20:12.45 | freemangordon | ok, sorry , my bad |
| 20:12.52 | jacekowski | where is it? |
| 20:13.04 | jacekowski | in the battery? |
| 20:13.05 | DocScrutinizer06 | R1110 |
| 20:13.10 | DocScrutinizer06 | no |
| 20:13.11 | jonwil | its not in the battery |
| 20:13.18 | jonwil | its some unknown part on the PCB |
| 20:13.28 | jacekowski | ahm |
| 20:13.29 | jacekowski | that one |
| 20:13.40 | jacekowski | well, then that's a thermistor |
| 20:13.45 | freemangordon | :D |
| 20:13.45 | jacekowski | not really much of a problem then |
| 20:13.50 | DocScrutinizer06 | probably in close contact to the metal bay the battery gets inserted to |
| 20:14.00 | jonwil | we know that the temprature sensor is a thermistor |
| 20:14.23 | jonwil | what we dont know is the forumula this specific thermistor uses to map temperatures to resistance levels |
| 20:14.31 | jonwil | different parts will do it differently |
| 20:14.40 | freemangordon | jacekowski: it is a problem as long as we don't have its R/T diagram |
| 20:15.12 | DocScrutinizer06 | jonwil: but they all have same "order" diagram. so with 3 support points you're fine |
| 20:15.19 | jacekowski | hmm |
| 20:15.28 | DocScrutinizer06 | freemangordon: ^^^ as well |
| 20:15.31 | jacekowski | freemangordon: that can be REed easily |
| 20:15.39 | jacekowski | lemme see |
| 20:16.06 | freemangordon | DocScrutinizer06: 3 wouldn't be enough , lemme refresh my memory a bit |
| 20:16.12 | jacekowski | hmmmmm |
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| 20:17.28 | DocScrutinizer06 | y=ax^2+bx+c |
| 20:17.36 | freemangordon | DocScrutinizer06: 3 would be enough for a thermocouple, not for a thermistor, IIRC it is a semiconductor after all ( dust, but still) |
| 20:18.10 | freemangordon | DocScrutinizer06: I think we need at least third order |
| 20:18.19 | DocScrutinizer06 | you start with 3 and check with a 4th |
| 20:18.59 | freemangordon | DocScrutinizer06: check Steinhart-Hart equation on wikipedia |
| 20:19.13 | DocScrutinizer06 | if the 4th is off, you go one order higher polynom |
| 20:19.32 | DocScrutinizer06 | ~wiki Steinhart-Hart |
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| 20:20.06 | jacekowski | ugh |
| 20:20.11 | freemangordon | yeah |
| 20:20.15 | jacekowski | there is a lot of code to calculate that battery temperature |
| 20:20.20 | jacekowski | and i mean A LOT |
| 20:20.29 | jacekowski | and it's floating point |
| 20:20.32 | DocScrutinizer06 | http://en.wikipedia.org/wiki/Thermistor |
| 20:20.50 | DocScrutinizer06 | jacekowski: WTF?! |
| 20:21.10 | freemangordon | so, we need to find those 3 parameters in the equation, lemme check if my matlab still works |
| 20:21.13 | jonwil | remember also that there is a capacitor connected to the ADC as well as the thermistor |
| 20:21.23 | freemangordon | jonwil: should not matter |
| 20:21.26 | jonwil | ok |
| 20:21.32 | freemangordon | that is a filter |
| 20:21.55 | jacekowski | DocScrutinizer06: well, i know where it reads BTEMP |
| 20:21.58 | jacekowski | DocScrutinizer06: in BME |
| 20:22.09 | jacekowski | DocScrutinizer06: as in raw value from ADC |
| 20:22.15 | jonwil | I found out where its reading the battery temp too |
| 20:22.24 | freemangordon | well, matlab starts ok, I just need the data :D |
| 20:22.26 | jacekowski | .text:0001DC1C |
| 20:22.40 | jacekowski | you've got that one? |
| 20:22.41 | freemangordon | jacekowski: lemme fire IDA |
| 20:23.46 | DocScrutinizer06 | for bme-replacement purposes, those 3 parameters clearly are confic variables you feed to the module by whatever means at runtime |
| 20:23.47 | jonwil | I got as far as 1DCC0 |
| 20:24.04 | jonwil | I saw the raw ADC value come as far as that |
| 20:24.09 | jonwil | so at 1DCC0 R0 is the raw value |
| 20:24.33 | jonwil | at least as far as I can tell its the raw ADC value |
| 20:24.38 | DocScrutinizer06 | fine, fsck steinhart-hart and build a LUT |
| 20:24.56 | DocScrutinizer06 | with linear interpolation ;-D |
| 20:25.08 | jonwil | then what I saw is that sub_17D44 did a bunch of stuff I couldn't follow |
| 20:25.16 | DocScrutinizer06 | after all that temperature is a geustimate |
| 20:25.16 | jonwil | and returned some other value |
| 20:25.23 | jacekowski | jonwil: raw'ish |
| 20:25.30 | jacekowski | jonwil: it looks like it's float in there |
| 20:25.37 | DocScrutinizer06 | eeeek |
| 20:25.47 | jonwil | yeah it looks like sub_17D44 is FPU |
| 20:25.53 | jonwil | worse still ARM FPU |
| 20:25.56 | DocScrutinizer06 | a float for a 12?-bit ADC value |
| 20:26.07 | jonwil | which from what I can tell is even MORE complex than x86 FPU |
| 20:26.08 | DocScrutinizer06 | WTF?!! |
| 20:26.21 | jonwil | in any case I definatly gotta zzz now being that its 4am here :) |
| 20:26.24 | jonwil | later guys |
| 20:26.30 | jacekowski | i've had it emulated some time ago |
| 20:26.32 | DocScrutinizer06 | l8r |
| 20:26.39 | jonwil | if you get anywhere, let me know :) |
| 20:26.40 | DocScrutinizer06 | is off now too |
| 20:26.42 | jacekowski | but then i've realised that there is no real need for it |
| 20:26.55 | jacekowski | as it may be simpler to just RE it from the battery itself |
| 20:27.16 | jonwil | you mean from the temperature sensor directly? |
| 20:27.34 | jonwil | as in reverse engineering the thermistor values |
| 20:27.59 | DocScrutinizer06 | NOT battery |
| 20:28.20 | DocScrutinizer06 | unless you mean from temeprature of battery and whole device |
| 20:28.23 | jonwil | either way, figuring it out seems to be important for a BME replacement (as pulseaudio relies on temprature data to do its work) |
| 20:28.40 | jonwil | definatly zzz now |
| 20:28.42 | jonwil | cya |
| 20:28.43 | DocScrutinizer06 | weird enough |
| 20:29.08 | freemangordon | jacekowski: then we just need some code to read ADC raw value and BME temperature |
| 20:29.23 | DocScrutinizer06 | :nod: |
| 20:29.30 | DocScrutinizer06 | pragmatic approach |
| 20:29.41 | freemangordon | DocScrutinizer: LUT should do the job too, but I hate LUTs :D |
| 20:29.59 | jacekowski | well, it looks like it's linear |
| 20:30.04 | jacekowski | as far as i remember |
| 20:30.09 | jacekowski | so all you need is 2 points |
| 20:30.39 | DocScrutinizer06 | http://en.wikipedia.org/wiki/Thermistor |
| 20:30.46 | freemangordon | jacekowski: IIRC how the thermistor works, there is no way it is linear. It MIGHT be linear for just a short diapason |
| 20:30.51 | DocScrutinizer06 | linear is good for a "small range" |
| 20:30.58 | DocScrutinizer06 | we got a small range here |
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| 20:31.30 | freemangordon | DocScrutinizer06: up to 60-70 deg is not a small range |
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| 20:32.10 | jacekowski | it is for a thermistor |
| 20:32.18 | jacekowski | you can "linearise" them |
| 20:32.32 | DocScrutinizer06 | as long as the error over range -20C-80C is less than 2° off, it's just pretty fine |
| 20:33.11 | freemangordon | well, http://www.fpharm.uniba.sk/fileadmin/user_upload/english/Fyzika/Thermistor.pdf a sample diagram |
| 20:34.55 | freemangordon | its too far from line to approximate it with a simple ax+b |
| 20:36.51 | jacekowski | well, kinda |
| 20:37.11 | jacekowski | i don't think it cares about precise temperature measurments anyways |
| 20:38.35 | freemangordon | if bme uses FPU to calculate the temp, we should use the same, trying to keep the precision as high as possible, and readings as close to BME as possible. |
| 20:38.53 | freemangordon | After all we don't know how is that temp reading used |
| 20:39.00 | DocScrutinizer06 | dafaq |
| 20:39.40 | DocScrutinizer06 | I dunno how it's used but I know how precise is the original raw data |
| 20:39.53 | DocScrutinizer06 | exactly not at all |
| 20:40.06 | freemangordon | you could have some PID, or whatever |
| 20:40.26 | DocScrutinizer06 | you also could have a loose battery |
| 20:40.53 | DocScrutinizer06 | od cold wind blowing through the whole device |
| 20:40.57 | DocScrutinizer06 | or* |
| 20:41.14 | freemangordon | sure, but adding our own error to the above won't make things better :) |
| 20:41.33 | DocScrutinizer06 | nor worse |
| 20:41.58 | freemangordon | TBH I don't see a reason why not do our best to have the best precision possible |
| 20:42.26 | freemangordon | after all noone will calculate the coefficients by hand |
| 20:42.57 | DocScrutinizer06 | using finicky float algo though might increase cpu load and codesize and possibility of errors sneaking in |
| 20:43.09 | freemangordon | I told you, just give me the data and I will use matldb for whatever order polinomial is needed |
| 20:43.49 | freemangordon | DocScrutinizer06: we can use integers |
| 20:44.01 | freemangordon | without loosing precision |
| 20:44.07 | freemangordon | losing* |
| 20:44.11 | DocScrutinizer06 | yes, that's what I said |
| 20:45.15 | freemangordon | DocScrutinizer06: BTW are you aware that fcam drivers work with cssu-kernel? |
| 20:45.17 | DocScrutinizer06 | for a 12bit AD value a 32bit integer is way more than overprovisioning |
| 20:45.24 | freemangordon | :nod: |
| 20:46.16 | freemangordon | hmm, actually it depends on polinomial order |
| 20:46.40 | freemangordon | if we need x^4, then it would not be enough i think |
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| 20:47.55 | DocScrutinizer06 | who would need that precision? PA? hardly |
| 20:48.26 | DocScrutinizer06 | bme? definitely not, for bme replacement a simple compare of raw value against a threshold is all you need |
| 20:49.05 | freemangordon | well, some pluginn ads EXACTLY 7 deg to BME reading to find out the ambiet temperature :D |
| 20:49.28 | DocScrutinizer06 | LOL |
| 20:49.47 | freemangordon | hald-addon-usb or something |
| 20:50.04 | DocScrutinizer06 | o/ ->dinner |
| 20:59.07 | RiD | i went full retard guys! |
| 20:59.22 | RiD | anyone has a copy of transp, that is on /usr/share/icons/default? |
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| 21:16.49 | kerio | freemangordon: how do fcam drivers work with cssu-kernel? |
| 21:18.31 | Muelli | wow, somebody seems to have updated the "power user" kernel... Interesting.. |
| 21:19.03 | freemangordon | kerio: NFC. http://talk.maemo.org/showpost.php?p=1235235&postcount=345 |
| 21:20.08 | kerio | that's not fcam, that's bless900 |
| 21:22.56 | freemangordon | kerio: afaik it uses fcam drivers |
| 21:22.59 | luke-jr | FWIW, Gentoo's kernel has fcam merged into it (ie, not a separate package) |
| 21:23.13 | luke-jr | well, Gentoo/N900 |
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| 22:09.37 | RiD | noobmode. I accidentally enabled cursor on applications, how do i disable it? |
| 22:10.06 | RiD | it appears on applications like FAPMAN and so on |
| 22:15.46 | RiD | ..aand nevermind ^ |
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