2014-01-12 00:41 jekhor_ has quit [Ping timeout: 260 seconds] 2014-01-12 00:51 wolfspraul has quit [Ping timeout: 252 seconds] 2014-01-12 00:53 wolfspraul has joined #qi-hardware 2014-01-12 01:14 xiangfu has quit [Ping timeout: 272 seconds] 2014-01-12 01:15 xiangfu has joined #qi-hardware 2014-01-12 01:17 rodgort has quit [Ping timeout: 264 seconds] 2014-01-12 01:18 rodgort has joined #qi-hardware 2014-01-12 01:53 pcercuei has quit [Quit: dodo] 2014-01-12 02:33 dos1 has quit [Ping timeout: 276 seconds] 2014-01-12 03:08 fire has joined #qi-hardware 2014-01-12 03:43 fire has quit [Quit: WeeChat 0.4.1] 2014-01-12 04:23 rz2k has joined #qi-hardware 2014-01-12 04:40 jvalleroy has quit [Remote host closed the connection] 2014-01-12 05:45 xiangfu has quit [Remote host closed the connection] 2014-01-12 06:10 viric has quit [Ping timeout: 240 seconds] 2014-01-12 06:10 viric has joined #qi-hardware 2014-01-12 06:29 viric has quit [Ping timeout: 240 seconds] 2014-01-12 06:30 viric has joined #qi-hardware 2014-01-12 07:17 fire has joined #qi-hardware 2014-01-12 07:18 fire has quit [Client Quit] 2014-01-12 08:16 apelete: yes 2014-01-12 08:18 wej has quit [Ping timeout: 245 seconds] 2014-01-12 08:28 qi-bot has quit [Ping timeout: 246 seconds] 2014-01-12 08:46 larsc: good morning 2014-01-12 08:53 larsc: been doing some homework this week, reading about DMA & MMC/SD spec basics 2014-01-12 08:55 larsc: looking at a few drivers code in drivers/mmc/host/, it appears dmaengine_prep_slave_sg(), dmaengine_submit() and dma_async_issue_pending() are indeed important parts of the dmaengine API, just like you said 2014-01-12 08:56 good 2014-01-12 08:56 larsc: but I can't figure out where to start, each driver I read is organized differently 2014-01-12 09:00 larsc: any clue about what I should get started with ? 2014-01-12 09:00 You can start with adding code to request and free the dma channel 2014-01-12 09:01 jekhor_ has joined #qi-hardware 2014-01-12 09:01 then for read_data() and write_data we need equivalents which use dma 2014-01-12 09:04 larsc: ok, thanks. request and release dma channel should be done in driver's probe() and remove() I guess, will get started with that 2014-01-12 09:06 I think davinci_mmc.c looks like what we need 2014-01-12 09:17 rz2k has quit [] 2014-01-12 09:17 lekernel has joined #qi-hardware 2014-01-12 09:18 xiangfu has joined #qi-hardware 2014-01-12 09:37 larsc: looked at davinci_mmc.c yesterday night but I wasn't sure if it was a good example or not. thanks 2014-01-12 09:51 xiangfu has quit [Ping timeout: 272 seconds] 2014-01-12 09:53 among all of them it is probably the closest to what we'll need 2014-01-12 09:57 xiangfu has joined #qi-hardware 2014-01-12 10:01 wej has joined #qi-hardware 2014-01-12 11:08 xiangfu has quit [*.net *.split] 2014-01-12 11:08 lilvinz has quit [*.net *.split] 2014-01-12 11:08 Ornotermes has quit [*.net *.split] 2014-01-12 11:08 nickoe has quit [*.net *.split] 2014-01-12 11:08 mldr has quit [*.net *.split] 2014-01-12 11:08 unclouded has quit [*.net *.split] 2014-01-12 11:08 jow_laptop has quit [*.net *.split] 2014-01-12 11:41 rz2k has joined #qi-hardware 2014-01-12 11:47 mldr has joined #qi-hardware 2014-01-12 11:47 unclouded has joined #qi-hardware 2014-01-12 11:47 nickoe has joined #qi-hardware 2014-01-12 11:47 jow_laptop has joined #qi-hardware 2014-01-12 11:51 xiangfu has joined #qi-hardware 2014-01-12 11:51 Ornotermes has joined #qi-hardware 2014-01-12 11:51 lilvinz has joined #qi-hardware 2014-01-12 12:23 pcercuei has joined #qi-hardware 2014-01-12 12:27 dos1 has joined #qi-hardware 2014-01-12 12:30 jvalleroy has joined #qi-hardware 2014-01-12 13:23 wej has quit [Ping timeout: 252 seconds] 2014-01-12 13:25 wej has joined #qi-hardware 2014-01-12 14:05 lekernel has quit [Ping timeout: 245 seconds] 2014-01-12 14:07 wej has quit [Ping timeout: 245 seconds] 2014-01-12 14:13 wej has joined #qi-hardware 2014-01-12 14:18 lekernel has joined #qi-hardware 2014-01-12 16:21 fire has joined #qi-hardware 2014-01-12 16:44 qi-bot has joined #qi-hardware 2014-01-12 17:13 http://www.youtube.com/watch?v=CWL08VdPTUM 2014-01-12 17:20 rz2k has quit [] 2014-01-12 17:40 hahaha: http://mirror.linux.org.au/pub/linux.conf.au/2014/Monday/175-The_Six_Stages_of_systemd_-_Rodger_Donaldson.mp4 2014-01-12 17:52 nice GIFs 2014-01-12 18:00 Stage 2, Anger: "Lennart is literally Satan and Redhat is essentially the Microsoft of Linux" 2014-01-12 18:01 you mean he's not? 2014-01-12 18:02 I'm just quoting the talk 2014-01-12 18:03 'getroffene hunde bellen' 2014-01-12 18:03 at least, systemd fixes the problem of your laptop suspending when you close it during shutdown 2014-01-12 18:04 he is just annoyed that lennart is fixing problems in a non-classic-unix-way 2014-01-12 18:04 and that it wasnt his idea 2014-01-12 18:04 (only to complete the shutdown when you open it again, if the battery wasn't drained already and awarded you a fsck) 2014-01-12 18:04 lekernel: but then you can't configure your laptop to suspend when closing the lid only if on battery 2014-01-12 18:05 systemd is something i really look forward to, compared to the broken classic unix concepts. well. maybe when its avail on debian by default. 2014-01-12 18:06 yep, modern init done right 2014-01-12 18:06 for the embedded world there is also a moden init/process management: procd and netifd 2014-01-12 18:07 its using ubus, instead of dbus. 2014-01-12 18:08 init done right, heh 2014-01-12 18:08 I'll stick to using busybox' init system for now 2014-01-12 18:14 pcercuei: did you find a place to stay? 2014-01-12 18:14 no 2014-01-12 18:15 :/ 2014-01-12 18:15 I'm not searching :) 2014-01-12 18:15 ok 2014-01-12 18:16 did you change your mind? 2014-01-12 18:16 about? 2014-01-12 18:16 munich 2014-01-12 18:17 no, I signed the contract 2014-01-12 18:17 however, looking for a place from here is not something easy; first because most of the offers disappear after one week, and I prefer to be able to visit 2014-01-12 18:18 ok 2014-01-12 18:18 did they ask you what kind of laptop you want? 2014-01-12 18:19 kyak has quit [Ping timeout: 246 seconds] 2014-01-12 18:20 huh 2014-01-12 18:20 I get a laptop? 2014-01-12 18:20 fire has quit [Quit: WeeChat 0.4.1] 2014-01-12 18:20 I thought I'd have a regular desktop PC 2014-01-12 18:21 I want it pink :D 2014-01-12 18:21 nobody has a desktop pc, I think 2014-01-12 18:29 it always takes forever to order stuff, would be a bit unfortunate if there was no computer when you start ;) 2014-01-12 18:30 what do you mean by what "kind" of laptop I want? 2014-01-12 18:30 I'll have to choose between models? 2014-01-12 18:31 I think there is a netbook, a normal laptop, and a developer laptop 2014-01-12 18:31 you want the developer laptop 2014-01-12 18:32 more cpus, more ram, etc... 2014-01-12 18:33 I'm just asking, because it happend in the past that people simply forgot to order stuff 2014-01-12 18:34 and I believe I can't use my own laptop 2014-01-12 18:34 not if you want to have access to the intranet 2014-01-12 18:35 my vacation is over now, I'll ask tomorrow 2014-01-12 18:35 okay 2014-01-12 18:43 jvalleroy has quit [Remote host closed the connection] 2014-01-12 18:43 jvalleroy has joined #qi-hardware 2014-01-12 19:08 dos1 has quit [Read error: Connection reset by peer] 2014-01-12 19:09 dos1 has joined #qi-hardware 2014-01-12 19:24 apelete has quit [Ping timeout: 252 seconds] 2014-01-12 20:05 whitequark: re Galden and excellent gas transporting properties: I just notices that it is easily explained by Joerg's 2nd physical law of aggregate states: the more a substance tends to transform into another aggregate state, the less of other substances of that aggregate state it can solve 2014-01-12 20:05 hot water can solve less gas since it's closer to becoming a gas itself 2014-01-12 20:06 Galden is pretty far from transition into gas phase 2014-01-12 20:06 that's a really strange observation 2014-01-12 20:07 otoh I never read up on the actual science behind gas solubility, maybe now's the time 2014-01-12 20:10 jekhor_ has quit [Ping timeout: 276 seconds] 2014-01-12 20:11 jekhor_ has joined #qi-hardware 2014-01-12 20:28 strange observation? really? think of sugar in cold tea vs hot tea. Cold tea is closer to the solid aggregate state of sugar 2014-01-12 20:28 strange is a poor word 2014-01-12 20:28 and ice can't solve any other solids, as we all know 2014-01-12 20:29 what I meant is that it's not clear whether your observation reflects some underlying principle or it's just a lucky coincidence for several obvious cases 2014-01-12 20:29 well, as I understand, ice won't include anything except water because it's a crystal 2014-01-12 20:29 I state it's a basic law, and invented/found by me 2014-01-12 20:29 not all solids have such structure 2014-01-12 20:29 sure you do :p 2014-01-12 20:31 try this at home: http://www.youtube.com/watch?v=wwolYFGM9pU 2014-01-12 20:34 re solubility of gasses: for some reason no one actually writes about baseline solubility of different solvent/solute pairs 2014-01-12 20:35 wej has quit [Ping timeout: 248 seconds] 2014-01-12 20:35 also, damn paywalls :/ 2014-01-12 20:36 re my 2nd law of aggregate: It still lacks the part about trans-aggregate cases, like gas in solid, sublimation, etc 2014-01-12 20:36 ooooo, found a paper explaining solubility of oxygen in PFCs 2014-01-12 20:37 http://pac.iupac.org/publications/pac/pdf/1985/pdf/5702x0303.pdf 2014-01-12 20:38 wej has joined #qi-hardware 2014-01-12 20:40 "The variety of approaches which have been used to determine the solubility of gasses in liquids is an adequate testimonial to man's ingenuity." hehehe 2014-01-12 20:45 whitequark: of course joerg's 2nd aggregate law is not sufficient to explain the special properties of Galden resp long-chain-alcohols 2014-01-12 20:52 fascinating. that article links to another article directly discussing solubility of oxygen in PFCs (http://www.sciencedirect.com/science/article/pii/S0021961471800046; paywall), which explains them via scaled particle theory (http://pubs.acs.org/doi/abs/10.1021/jp040398b; paywall) 2014-01-12 20:54 (tell me if you need a PDF for any of them) 2014-01-12 20:56 weird. SPT apparently approximates both solvent and solute as hard spheres and derives the properties from *just the geometry* 2014-01-12 20:56 and it also apparently has a good agreement with empirical results 2014-01-12 21:00 (geometry) much in line with my contruction of reality 2014-01-12 21:03 thermodynamics and solubility both are quite simple mechanical concepts basically 2014-01-12 21:04 why doesn't it take dipole interactions into account? 2014-01-12 21:04 even electricity mostly can get explained by mechanical concepts 2014-01-12 21:04 well, dipoles should get taken into account, as a force 2014-01-12 21:05 without dipoles water wasn't possible 2014-01-12 21:05 of course it is, just with different properties 2014-01-12 21:05 lower entalphy of vaporization, etc 2014-01-12 21:05 yeah, that's what i meant 2014-01-12 21:06 and yet, SPT doesn't take into account the non-geometrical properties of particles at all 2014-01-12 21:06 weird 2014-01-12 21:06 exactly 2014-01-12 21:07 well, probably they can get away with considering a water macromolecule as inert object. 2014-01-12 21:08 do water macromolecules even exist? 2014-01-12 21:08 if the gas is interacting with the dipoles then I bet that has some effect 2014-01-12 21:08 from my understanding it doesn't have any structure, neither permanent nor transient 2014-01-12 21:09 water creates pseudo-macromolecules by building +o-+o-+o- chains 2014-01-12 21:10 thus the *effective* molecular mass is way higher than what H2O suggests 2014-01-12 21:10 would like to see a source on that 2014-01-12 21:11 errr, elementar school physics 2014-01-12 21:11 yeah, that can often be completely wrong :] 2014-01-12 21:12 however it's the explanation why water is a liquid on temperatures <100°C 2014-01-12 21:12 "macromolecule" is a rather specific term and I'm afraid not the right one here 2014-01-12 21:13 probably, that's why I said "pseudo-macromolecules" 2014-01-12 21:13 of course it has higher intermolecular forces due to polar molecules 2014-01-12 21:13 also I don't think it's "chains", it can form more than two h-bonds 2014-01-12 21:14 well, up to you to find the terminology that pleases you 2014-01-12 21:15 I never even learned the english terms 2014-01-12 21:16 so I invent english words that seem to describe what I mean 2014-01-12 21:16 you can just post the german ones, I'll bother to look them up 2014-01-12 21:16 saves us both confusion 2014-01-12 21:20 lekernel has quit [Quit: Leaving] 2014-01-12 21:40 Bitcoin ATM :) http://www.zerohedge.com/news/2014-01-12/bitcoin-atms-are-coming-new-york-city 2014-01-12 22:18 uwe_mobile has quit [Remote host closed the connection] 2014-01-12 22:18 uwe_mobile__ has joined #qi-hardware 2014-01-12 22:44 arielenter has joined #qi-hardware 2014-01-12 22:53 arielenter has quit [Quit: Leaving.] 2014-01-12 22:56 nicksydney has quit [Remote host closed the connection] 2014-01-12 22:57 nicksydney has joined #qi-hardware 2014-01-12 22:58 arielenter has joined #qi-hardware 2014-01-12 23:05 grmbl. the new ybox is a pain to route. 2014-01-12 23:06 well, i guess once i figure out a component placing that actually works it'll all be fine ...