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| 04:14.44 | rektide | thats what she said |
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| 06:54.25 | Mirell | Heh |
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| 09:03.52 | mne | Hi. I have a speech codec chip which uses the UART serial interface for device control and compressed speech data transfer. I would like to write a linux device driver for it, but I don't know how I can access the serial port from kernel code. There is the atmel_serial.c driver which seems to be responsible for UART communication on AT91. In the uart_ops struct there are the low level serial port functions I would like to use. Unfortunately, they do not seem to |
| 09:03.52 | mne | <PROTECTED> |
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| 09:15.47 | boris_OmegA | mne , maybe you can have a look to termios |
| 09:16.43 | mne | but this is userland, right ? I would like to access the serial port from kernel space |
| 09:17.20 | boris_OmegA | so uses ioctls |
| 09:17.53 | boris_OmegA | usefull for low level device configurations / manipulations |
| 09:18.07 | mne | But this would mean that my kernel driver code would need to access /dev/ttySn |
| 09:18.13 | boris_OmegA | og course |
| 09:18.14 | boris_OmegA | and ? |
| 09:18.26 | boris_OmegA | -g+f |
| 09:18.35 | mne | Isn't it very bad to do something like that from kernel space ? |
| 09:19.17 | mne | Also, I'm not sure if I can access files on a filesystem from kernel space that easily |
| 09:19.42 | boris_OmegA | i don't know |
| 09:20.00 | boris_OmegA | but how do you want to do to acces an uart port without /dev/ttyxxx ? |
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| 09:21.13 | mne | Since 'm in kernel space I would like to do that by using exported kernel symbols for uart. Unfotunately, the exported symbols do not seem to provide low level access |
| 09:22.22 | mne | It's the same for other communication bus types like SPI, I2C or GPIO. they all offer exported kernel symbols that can then be used by linux kernel code. This allows for example a linux device driver to use GPIO pins or transfer data over the SPI or I2C bus |
| 09:22.56 | mne | I found a very old post here which is basically the same problem: http://lkml.indiana.edu/hypermail/linux/kernel/0205.0/0539.html |
| 09:24.54 | mne | It says that the slip driver is where I want to have a look at since it accesses the serial port from kernel space as well. It also seems like accessing a serial port from kernel space is called a "line discipline". I'm still confused anyway |
| 09:28.19 | boris_OmegA | hmm |
| 09:28.41 | boris_OmegA | do you want to access uart by chip pins ? |
| 09:29.28 | mne | What do you mean with chip pins ? |
| 09:29.56 | mne | The speech codec chip is connected to one of the serial port pins on an at91sam9260 controller |
| 09:32.05 | mne | OK, it seems that writing a "line discipline" really is what I want to do. I found this article here: http://www.linux-mag.com/id/1891 |
| 09:32.34 | mne | you can login with bugmenot/bugmenot |
| 09:33.44 | boris_OmegA | sorry afk for lunch |
| 09:33.45 | boris_OmegA | see ya |
| 09:33.55 | mne | see you ;) |
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| 13:04.31 | boris_OmegA | hi there |
| 13:04.44 | boris_OmegA | i have a problem with an autogen.sh launch for a cross compilation |
| 13:05.05 | boris_OmegA | does somebody have experience in autotools , can help me please :) ? |
| 13:05.15 | boris_OmegA | i guess this is not a big problem |
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| 13:58.13 | chouimat | morning |
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| 14:20.54 | dijenerate | prpplague: howdy |
| 14:21.08 | prpplague | dijenerate: greetings |
| 14:22.04 | mnemoc | prpplague: hi, is it true that wince doesn't do .net? |
| 14:22.38 | dijenerate | mnemoc: you need CE.Net specifically |
| 14:23.08 | prpplague | mnemoc: CE .Net is a subset of .NET |
| 14:23.19 | mnemoc | ic |
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| 14:23.49 | prpplague | mnemoc: all of CE .NET appications will run under .NET , however not all .NET applications will run under CE .NET |
| 14:24.07 | mnemoc | something important missing? |
| 14:25.23 | mnemoc | I was trying to sell your m8050 and my VB.net subnormal code vomiters said it was useless because .net wasn't supported :\ |
| 14:25.24 | prpplague | mnemoc: CE .NET doesn't have all the features that full .NET has |
| 14:25.36 | mnemoc | +coworkers |
| 14:26.52 | prpplague | mnemoc: http://www.codebase.com/support/kb/?article=C01109 |
| 14:27.01 | mnemoc | thx |
| 14:27.27 | prpplague | mnemoc: that was just a quick google, i am sure there are more authoritative answers |
| 14:27.54 | mnemoc | yes, I got enough keywords to google now :) |
| 14:27.56 | mnemoc | thanks! |
| 14:28.21 | prpplague | mnemoc: http://articles.techrepublic.com.com/5100-10878_11-1050430.html |
| 14:28.47 | mnemoc | perfect |
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| 15:37.18 | wmat | who's in or near Chicago again? |
| 15:37.44 | g1powermac | I think Mirell was in Chicago |
| 15:37.48 | wmat | Playboy Enterprises is looking for a Sys Admin in Chicago! |
| 15:37.55 | g1powermac | hah |
| 15:38.23 | agaffney | ponders moving to Chicago |
| 15:38.25 | agaffney | ;) |
| 15:38.40 | agaffney | unless it's a Windows admin...screw that :P |
| 15:39.35 | g1powermac | I think you may see prpplague move to chicago in just a few moments here ;-) |
| 15:39.56 | agaffney | heh |
| 15:40.16 | agaffney | wonders about the "benefits" package |
| 15:40.21 | g1powermac | hahah |
| 15:41.23 | prpplague | g1powermac: hehe |
| 15:44.43 | prpplague | mnemoc: how many M8050's are you potentially going to purchase? |
| 15:45.29 | mnemoc | prpplague: at _most_ 3-4 per month |
| 15:46.29 | prpplague | mnemoc: well make sure you reference me on the Purchase Order, hehe, not like i get a commision, but atleast they will know helped the sell along |
| 15:47.02 | mnemoc | =) |
| 15:48.56 | mnemoc | if I happen to convince them to try the m8050, your name will be there |
| 16:03.37 | prpplague | man those beagleboards are selling like hot cakes |
| 16:03.48 | prpplague | just doesn't get the appeal of the beagleboard |
| 16:12.44 | solar | prpplague: simply the DSP to price ratio. |
| 16:13.23 | prpplague | solar: i guess that is why i don't get it, the DSP doesn't give me anything |
| 16:13.49 | solar | pretty high res. Nearly suitable as a streaming media device. |
| 16:15.24 | solar | the downside that I see in them is everything fun you want to attach is going over the usb interface which under any heavy i/o seems to cause USB resets. |
| 16:15.46 | solar | thats why I look forward to TCT's addon board |
| 16:30.08 | prpplague | solar: hehe, "everything fun you want to attach is going over the usb", thats just it for me, i can't think of anything fun to do with the beagle |
| 16:31.09 | prpplague | solar: i have two beagleboards and both are boxed up and on the shelf, haven't been touched in 6 months |
| 16:39.29 | g1powermac | has a gumstix he hasn't touched in many months |
| 16:39.54 | g1powermac | but that was because I really wanted a case for it, to easy for the modules just to pop off when playing with it |
| 16:45.28 | chouimat | is bored |
| 16:46.03 | g1powermac | charges chouimat with some of my high level of energy atm |
| 16:47.24 | prpplague | geee if someone had time to write a quickbooks interface app for a linux handheld, i'm sure there would be people who would by it......*cough* |
| 16:50.47 | g1powermac | looks innocently in the other direction. . . ;-) |
| 16:54.10 | chouimat | prpplague: thanks for the pointer ... |
| 16:54.35 | chouimat | prpplague: and better do something about this nasty cold you have ;) |
| 16:54.43 | prpplague | hehe |
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| 16:57.52 | chouimat | prpplague: *cough* I know nothing about quickbooks *cough* |
| 16:58.22 | prpplague | chouimat: don't have to |
| 16:58.44 | prpplague | chouimat: just need to write a client app, basically a terminal emulator |
| 16:59.09 | prpplague | chouimat: g1powermac downloaded the sdk with api info |
| 16:59.59 | chouimat | I see now |
| 17:00.14 | chouimat | prpplague: then it's something else :) |
| 17:00.25 | prpplague | chouimat: ?? |
| 17:01.15 | chouimat | prpplague: nm ... was thinking out loud |
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| 17:07.07 | prpplague | well darn, i can't seem to get this DLL to load |
| 17:11.20 | chouimat | prpplague: wow the sdk is huge |
| 17:34.19 | g1powermac | chouimat, yes it is |
| 17:34.37 | g1powermac | chouimat, if you did attempt it, make sure to go for the quickbooks point of sale sdk |
| 17:35.15 | g1powermac | not standard quickbooks, as it wouldn't help serve accountants all that much |
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| 17:57.30 | prpplague | landley: greetings |
| 17:59.52 | ds2 | morning |
| 18:02.16 | prpplague | ds2: greetings |
| 18:02.52 | prpplague | ds2: what size is the lcd you have on your beagle MID ? |
| 18:03.04 | landley | Hiya prpplague. What's up? |
| 18:03.12 | prpplague | landley: wince'n |
| 18:03.19 | prpplague | landley: frustrating as hell |
| 18:03.37 | *** mode/#edev [+o prpplague] by ChanServ |
| 18:10.50 | ds2 | prpplague: 4.3" |
| 18:11.07 | prpplague | ds2: ahh |
| 18:11.21 | prpplague | ds2: 640x480? |
| 18:16.57 | prpplague | damit! i can't seem to get this DLL to load on boot |
| 18:18.42 | ds2 | prpplague: no, 480x472... "WQVGA" I think is the alphabet soup used |
| 18:18.59 | ds2 | need an interface? |
| 18:18.59 | prpplague | ahh |
| 18:19.37 | prpplague | ds2: no, i was just kicking around ideas for a injection molded case for your design |
| 18:20.25 | ds2 | oh hehe |
| 18:20.45 | ds2 | unless you are doing aluminum molds, that is $$$$$$$$$$ |
| 18:21.16 | ds2 | I suppose if you can design the mold and get time in an injection machine, I can make the mold |
| 18:23.21 | prpplague | ds2: not really that much |
| 18:23.47 | prpplague | ds2: i can get SLA's or SLS's for about $40 |
| 18:24.12 | prpplague | ds2: injection molded tool would run about $5k with per unit costs at about $1USD |
| 18:24.32 | keesj | prpplague: I have bought the 100 Euro laptop |
| 18:24.47 | prpplague | keesj: cool |
| 18:29.29 | keesj | it's a pretty cool felling to have a arm based fanless laptop here |
| 18:34.21 | prpplague | keesj: hehe, indeed |
| 18:34.38 | prpplague | keesj: i built an arm laptop out of one of the kids educational laptop about 4 years ago |
| 18:34.47 | prpplague | keesj: not as fancy as i would expect yours is |
| 18:36.22 | landley | In 2.6.30, neither mips nor powerpc build out of the box. Both need patches to avoid build breaks. |
| 18:36.43 | landley | Am I the _only_ one attempting to build multiple targets and run them under qemu? This is a _RELEASE_... |
| 18:36.44 | prpplague | landley: wtf? |
| 18:36.51 | landley | Yes. |
| 18:36.58 | landley | drivers/net/mace.c: In function 'mace_probe': |
| 18:36.58 | landley | drivers/net/mace.c:210: error: 'struct net_device' has no member named 'open' |
| 18:37.01 | landley | That's the powerpc error. |
| 18:37.14 | prpplague | landley: and it will take an act of god to get it fixed |
| 18:38.00 | landley | The mips one turned out to be a typo using "us" instead of "ns" in mips/lib/delay.c, although actually fixing mips to _work_ required 2 patches. |
| 18:38.09 | landley | I'm now learning where all the linux-platform irc channels are on here... |
| 18:38.52 | prpplague | landley: yea they are pretty handy |
| 18:39.17 | prpplague | landley: with the exception that really isn't a good arm channel perse |
| 18:39.48 | roxfan | iirc there's one on oftc |
| 18:39.56 | prpplague | landley: lots of channels that discuss arm cores, but none really have any power to change anything |
| 18:39.59 | roxfan | but when i went there it was pretty dead |
| 18:43.55 | prpplague | roxfan: yea, none of the arm system maintainers really hang in open irc channels |
| 18:44.14 | prpplague | roxfan: only recently bjdooks(the s3cxxxx maintainer) started hanging in the #s3cxxxx channel |
| 18:44.47 | prpplague | lordy lordy |
| 18:44.55 | prpplague | this wince build system is driving me nuts |
| 18:45.01 | landley | prpplague: the powerpc thing is that CONFIG_COMPAT_NET_DEV_OPS is mandatory to actually build any network devices. |
| 18:45.03 | landley | Wheee. |
| 18:45.16 | landley | prpplague: for arm you need to bug the mailing list. |
| 18:45.17 | prpplague | ahh |
| 18:45.33 | prpplague | landley: yea, i don't care for mailing lists |
| 18:46.08 | prpplague | landley: i rarely get usuable information back from a mailing list |
| 18:53.43 | ds2 | $40? for SLA?! youmust own the machine or have a very hungry service bureau |
| 18:59.54 | prpplague | ds2: we just do lots of SLA's |
| 19:05.19 | keesj | LOL prpplague needs to update his User page on elinux |
| 19:05.32 | keesj | http://www.elinux.org/User:Prpplague |
| 19:06.13 | prpplague | keesj: ?? |
| 19:06.32 | prpplague | keesj: you mean the MS free statement? |
| 19:06.58 | keesj | yes |
| 19:10.22 | ds2 | prpplague: as a part of a demo, I had the RP guys make me something smaller then a tennis ball... it would have costs me about $200 if I had to pay for it |
| 19:10.35 | prpplague | keesj: well technically i'm still MS free, since i have no MS products at home |
| 19:12.01 | prpplague | ds2: yea like i said, we do over 50 SLA's SLS's a month, so they tend to give us a discount |
| 19:12.01 | landley | prpplague: I can get usable info back usually, but the latency for a decent answer is about 3 days. |
| 19:12.01 | prpplague | landley: yea, and for me that is just too long, i can't put things on hold for 3 days waiting for an answer |
| 19:16.08 | landley | prpplague: I have multiple things I can be doing in parallel. |
| 19:16.41 | prpplague | landley: yea, different when you have a project that needs to stay on schedule |
| 19:19.41 | landley | I can git bisect, read the source, trace through the assembly, and so on if I really have to. |
| 19:19.56 | landley | It's just not necessarily faster than asking people who already know, and it makes quite a mess. |
| 19:26.53 | prpplague | landley: in most cases i can google around and dig through source faster than waiting for mailing list answer |
| 19:29.48 | landley | Off to do laundry... |
| 19:42.01 | prpplague | wonders if landley has lots of "Dirty Laundry" |
| 19:52.43 | ds2 | lunch time |
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| 21:08.41 | ds2 | Hmmm |
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| 22:33.05 | ds2 | anyone that has used the original microchip ethernet SPI chip got ran any throughput numbers on it? |
| 22:33.22 | ds2 | s/got ran/got or ran/ |
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| 23:57.31 | Mirell | Gahhhh... |
| 23:57.44 | Mirell | stabs the e2fsprogs, HAL, and util-linux-ng developers simultaneously |
| 23:59.27 | g1powermac_EPC | Mirell, you wanna use my death ray, it maybe a bit more efficient and less messy :-) |
| 23:59.53 | Mirell | Why on God's earth would you release a new version of HAL that depends on something currently only available in git... |
| 23:59.56 | Mirell | WHY?!?! |