Re: freezing DCON for insecure boot

2008-04-18 Thread Mitch Bradley
Bernie Innocenti wrote: Hello Mitch Scott, I have a laptop with a developer key, running an unsigned image with a few customizations for Turkey. They want a pretty custom logo and I succeeded in getting it to work in insecure mode, but it looks ugly because they see the kernel barfing

Re: Severe new bug in firmware Q2D13?

2008-04-17 Thread Mitch Bradley
C. Scott Ananian wrote: I am in Brazil at the moment, without good access to email. But since this seems to be a firmware problem, Mitch Bradley is the right person to help you, at this stage at least. Please check the batteries as Mitch suggests (photos might be helpful for us to see what's

Re: Severe new bug in firmware Q2D13?

2008-04-17 Thread Mitch Bradley
Ricardo Carrano wrote: It is possible that the factory neglected to set the date on some units, Isn't if the same that we fixed in some units back in December? http://wiki.laptop.org/go/Fix_Clock The problem report stated that they are able to activate the machines, but that the

Re: Severe new bug in firmware Q2D13?

2008-04-16 Thread Mitch Bradley
I have been told that the Uruguay machines are supposed to have good battery holders, so my earlier suggestion about coin-cell batteries popping out of the holder might be incorrect. However, we have also seen a problem where some of the coin-cell batteries are defective, so it would be

Re: Severe new bug in firmware Q2D13?

2008-04-15 Thread Mitch Bradley
Some of the machines from the first production run had bad battery holders. Not the main battery, but rather the small coin cell battery on the mainboard that powers the time-of-day/calendar clock chip. Those battery holders have a plastic retention lip that holds the coin cell in place. On

Re: Build Debate: Followup on Build Naming

2008-04-08 Thread Mitch Bradley
The right answer to the naming question depends on the meta-question of what will we be releasing. Are we going to continue down the path of bundling the OS and the activities into one giant release wad, or will we split out the separate components (OS, sugar, core activities) and release them

Re: Build Debate: Followup on Build Naming

2008-04-08 Thread Mitch Bradley
Perhaps it would be better to use a letter instead of a number for the generation code (major release). When confronted with a string of several numbers, the human mind tends to blank out. For some reason, letter - number - number is easier to remember and say than number - number - number .

Re: Chilling Effects paper at USENIX

2008-04-08 Thread Mitch Bradley
It would have been nice if the criticisms had been delivered directly to OLPC, instead of broadcast in a public forum, where enemies of OLPC can cite and expand on them as evidence that OLPC is hopelessly screwed up, so you should buy our competing product instead. If you get my drift. I

Re: any drawbacks to using copy-nand and save-nand to install XO images

2008-03-27 Thread Mitch Bradley
Bryan Berry wrote: Other than the fact that the firmware security has to be left disabled to use these commands, are there any technical drawbacks to using these commands? I use them extensively and hope I am not causing some kind of damage to our XO's save/copy-nand don't preserve user

Re: any drawbacks to using copy-nand and save-nand to install XO images

2008-03-27 Thread Mitch Bradley
James Cameron wrote: On Thu, Mar 27, 2008 at 03:23:59PM -0400, Michael Stone wrote: A much better strategy is to reflash an XO, boot it off of external media (like a USB key), make changes to the NAND, then save-nand, thus avoiding the first-boot configuration junk. I agree, and

Re: UI usability for 4 year old (was Re: Call for Papers/Talks/Ideas!)

2008-03-24 Thread Mitch Bradley
John R. Hogerhuis wrote: On Sun, Mar 23, 2008 at 9:28 PM, Mitch Bradley [EMAIL PROTECTED] wrote: snip In any case, the left and right panels can't sense fingertip pressure - you would have to use a fingernail, and that would override the signal from capacitive sensor. OK

Re: UI usability for 4 year old (was Re: Call for Papers/Talks/Ideas!)

2008-03-23 Thread Mitch Bradley
John R.Hogerhuis wrote: ... Are the left and right panels pressure sensitive? If so, they could be used to dynamically adjust the brush size/weight depending on how hard she pushes. You can use either the resistive sensor ( left + middle + right with stylus-class pressure) or the

Parallel reading

2008-03-17 Thread Mitch Bradley
Michael Veith wrote: ... Yes, right. I'd prefer a lot more books than only two. And let me state some kind of -let's call it- insight. I see some parallels between the manner one reads religious texts like the Bible or the Koran and the reading of code (at least in object-oriented

Re: Raise the level of the Hardware specifications... or let's do some field tests!

2008-03-11 Thread Mitch Bradley
Bennett Todd wrote: 2008-03-11T15:18:57 Jameson Chema Quinn: Now that there are a significant number of laptops in Peru, high-altitude testing may be more feasible. What test plan would you want followed in order to be able to raise the specs? Surely this has to start with the

Re: Updates from Nepal's Pilot Schools

2008-03-09 Thread Mitch Bradley
Regarding the suggestion of LED bulbs - a smart person on another list said that many brands of LED bulbs are also prone to failure due to bad power - so don't treat them as a panacea. ___ Devel mailing list Devel@lists.laptop.org

Re: I/O scheduling (pdflush) on the XO

2008-03-08 Thread Mitch Bradley
JFFS2 does automatic compression so every write invokes zlib compression. That is a rate-limiting factor on this machine - the raw NAND write speed is several times faster than the compress speed. For files with large pieces, that compression results in a 2x space savings. But JFFS2 can

Re: State of the update.1

2008-03-06 Thread Mitch Bradley
Richard A. Smith wrote: C. Scott Ananian wrote: From my brief triage of *only the blocker bugs*, ones which look important include: * trac #1407, 2804: touchpad problems These 2 will probably not make it. They are long standing issues with the hardware. Dilinger and I have

Re: Update.1 690 very slow on B2-7 XO

2008-02-06 Thread Mitch Bradley
Stephen Bannasch wrote: With regard to build406.16. Can I just replace os656.crc and os656.img in the boot dir on my USB flash stick with os406.icrc and os406.img and startup with it? Will build406.16 work with q2d12? Q2D12 is compatible with all OS builds that have come out in recent

Formal release methodolology

2008-02-05 Thread Mitch Bradley
Kim Quirk wrote: Ok... I think what we haven't defined at this point that is probably worthy of discussion is: If or when we will need formalized testing before release. If we decide that there is a good reason for formalized testing; then we can put in place the process that ensures we

Re: disabling root and olpc passwords

2008-02-04 Thread Mitch Bradley
Gary Oberbrunner wrote: subbukk wrote: sftp and scp both require receiver to share login password with sender. nc doesn't. It just reads/writes bytestreams from/to network sockets. E.g. You can transfer sub-directories across machines with : [EMAIL PROTECTED] $ nc -lp | tar xzvf

Re: Pen Tablet firmware test doesn't work on beta2 machine

2008-02-04 Thread Mitch Bradley
Patrick Dubroy wrote: I've got a beta2 machine, and access to a beta4 machine as well. On the B2, when I boot into the firmware tests and get to the Pen Tablet/Glide Sensor test, I get absolutely no response from the Pen Tablet. The Glide Sensor (touchpad) works fine. I've also tried running

Re: [sugar] What's left for Update.1

2008-02-02 Thread Mitch Bradley
I can make a q2d12 with the fix for 6291. The fix is extremely low risk - just a change in one number that tells how far to search for additional nodes in a partially-written block. The only reason why I haven't made a q2d12 already is because I can't get to the build server - the machine

Announcing OLPC firmware Q2D12

2008-02-02 Thread Mitch Bradley
It is Q2D11 plus a fix for http://dev.laptop.org/ticket/6291 . It has Richard's latest EC improvements (as in D11). http://wiki.laptop.org/go/OLPC_Firmware_q2d12 ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel

Re: Control the +5V USB port power on the XO

2008-01-23 Thread Mitch Bradley
Arjun Sarwal wrote: Is there a way to switch Off (and subsequently toggle) the +5V USB power supply on the XO in software ? Yes, but it's complicated, because a) the way you do it depends on whether or not the USB 2.0 host controller has claimed the port. b) the USB port that controls the

Re: New update.1 build 687

2008-01-23 Thread Mitch Bradley
[EMAIL PROTECTED] wrote: I'm occasionally seeing an issue with the keyboard in recent builds (no problem on 682, I've seen problems on everything since). This is a G1G1 laptop Are you using Q2D09 firmware? There have been reports of strange keyboard behavior as a result of some EC code

Re: New update.1 build 687

2008-01-23 Thread Mitch Bradley
manually revert to q2d08 (see the instructions on the wiki page for q2d08) and remove the bootfw.zip from /versions/boot/current/boot (to keep it from autoupdating right back to d09) and the problem might go away. [EMAIL PROTECTED] wrote: On Tue, 22 Jan 2008, Mitch Bradley wrote: [EMAIL

Re: Questions about openfirmware build environment

2008-01-22 Thread Mitch Bradley
llandre wrote: Hi all, I have some questions about openfirmware build environment. I could not find these information on OLCP wiki. I successfully cloned the git repository and built ofw on x86-64 host running CentOS, however I'd like to understand exactly how the build process works. At

Re: joyride-1563 broken, olpc.fth missing, fails to boot [FIX]

2008-01-21 Thread Mitch Bradley
You don't really need the entire olpc.fth - the following lines should suffice: ok setenv ramdisk n:\boot\olpcrd.img ok boot n:\boot\vmlinuz root=mtd0 rootfstype=jffs2 Those lines are short enough to type manually. The rest of olpc.fth is just automated reflash and support for boot-alt. Most

Re: Update.1 testing

2008-01-20 Thread Mitch Bradley
Jameson Chema Quinn wrote: I know that we're supposed to all be developers here, and know how to change the firmware in our sleep; but it would be great to include a link to instructions. I searched the wiki - http://wiki.laptop.org/go/Manual_Firmware_Install is worse than useless, and

Re: Update.1 testing

2008-01-20 Thread Mitch Bradley
Jameson Chema Quinn wrote: Simple. Put the manual install instructions in http://wiki.laptop.org/go/Manual_Firmware_Install and then, in each relnotes page add {{:Manual_Firmware_Install}}, which will include the text of that page in the one it is as a template in.

Re: SD card won't power up in OFW

2008-01-19 Thread Mitch Bradley
Fixed in Q2D08 http://dev.laptop.org/ticket/5717 David Howard wrote: Saw a short thread with this subject in December 2007. I also got the SDHCI: Card didn't power up after 1 second message. The SD is a Toshiba SDHC 4GB. Q2D07 and 650/653/656 OS. I tried last two on the SD after

Re: Openfirmware customisation problem - booting from USB

2008-01-18 Thread Mitch Bradley
Mr frÿffe9dÿffe9ric pouchal wrote: Hello I would like to boot OpenFirmware from an USB key On a conventional PC or an OLPC XO? The former is supported; the latter could be made to work but will probably require some changes. so I changed the file

Re: Testing the Wireless driver changes

2008-01-17 Thread Mitch Bradley
Hal Murray wrote: When it comes to our radio - we *designed it* to start forward frames soon after you initialize it and keep doing it regardless of what the host interface does. In the context of making the radio safe to use on airplanes... Does the firmware turn the radio on at

Re: B2s and OFW

2008-01-16 Thread Mitch Bradley
Carl-Daniel Hailfinger wrote: On 17.01.2008 02:02, Mitch Bradley wrote: Ricardo Carrano wrote: Hi Mitch! Would you recommend using firmware version q2d07 on a B2-1 unit? Yes. So Q2D07 has been tested on B2-1? How about B1 and B2-2? IIRC there were

Re: How to change the screen resolution ?

2008-01-13 Thread Mitch Bradley
Mr frÿffe9dÿffe9ric pouchal wrote: Hello I would like to change the screen resoltuion of my olpc I have tried to pass an argument to the kernel video=gxfb:1024x768-16 but it failed The screen resolution is fixed; it can't be changed. I also tried to test the DCON with

Re: q2d08A firmware anywhere?

2008-01-13 Thread Mitch Bradley
Martin Dengler wrote: Hi, I'm seeing plenty of suspend/resume problems with my G1G1 C2 laptop (joyride-1532 with firmware q2d08), and I'd like to try the latest firmware before I file any proper trac bug reports[1]. I can't seem to find where to download it on the wiki (though it's been

Re: GRUB on OLPC / XO

2008-01-12 Thread Mitch Bradley
Robert Millan wrote: Some comments on things that need polishing. Some are more addressed at one of the two lists than the others, but feel free to join in either case. (also, if you feel this is off-topic in olpc-devel, feel free to ki^W let me know) btw, Mitch mentioned to me on IRC that

Re: GRUB on OLPC / XO

2008-01-12 Thread Mitch Bradley
Robert Millan wrote: We used to run trap insttruction on powerpc. I assume for exitting via trap on i386 we need to generate an interrupt; I'm just not sure which is the right number for it. To exit to OFW, call the exit() client service. I see. Is this one

Re: GRUB on OLPC / XO

2008-01-12 Thread Mitch Bradley
I was wrong about the mmu thing. I just checked the patch instructions at http://openbios.org/Open_Firmware and noticed that the patch comments out create virtual-mode. So if you build with that patch, you get physical addressing. I don't know what is right, because this build configuration

Re: Announcing OLPC firmware Q2D08

2008-01-09 Thread Mitch Bradley
ffm wrote: Will it be auto-installed when I olpc-update to latest joyride, or will it have to be manualy installed? Manual. -ffm On Jan 9, 2008 4:33 PM, Mitch Bradley [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote: http://wiki.laptop.org/go/OLPC_Firmware_q2d08

SD resume timing

2008-01-09 Thread Mitch Bradley
At today's bug status meeting, I was asked to investigate SD card resume timing from OFW. The range was 24 mS to 187 mS , depending on which SD card is plugged in. The fixed component of that time is about 5 mS, including re-initing the host controller and issuing a sequence of card commands

Re: Boot Failure

2008-01-06 Thread Mitch Bradley
The fact that it is trying to boot from the wireless device means that it didn't find /boot/olpc.fth on either USB, SD, or NAND. What happens if you type: ok dir n:\boot\ [EMAIL PROTECTED] wrote: Dear all, I updated build 613 into 650 on B4 Machine. For some time, it worked well. However,

Re: [OT] struggles installing builds

2008-01-05 Thread Mitch Bradley
I would like to debug these problems. Find me on IRC - /server irc.oftc.net /join #olpc-devel . Instances of devices that exhibit such problems are valuable for discovering where delays are needed. If would be nice if devices conformed to the published timing requirements, but alas, many

Re: Weird WLAN problem after stupid upgrade attempt

2008-01-04 Thread Mitch Bradley
: a) Remove all power - AC and battery - for a few seconds to reset the wireless really well, then reboot and try the POST diags again. b) If that doesn't fix it, email me when you get your developer key and I'll work with you on IRC to see if we can learn more about the failure details. Mitch

Re: open firmware question

2008-01-04 Thread Mitch Bradley
Ivan Krstić wrote: On Jan 2, 2008, at 10:13 PM, Ricardo Carrano wrote: How do I do the opposite of copy-nand - copy the OS image _from_ the nand into a USB key? If you don't have OFW access or it isn't convenient to have to reboot, you can use my 45-second Python hack:

Re: Is it possible to disable the jingle at boot ?

2008-01-03 Thread Mitch Bradley
Bernardo Innocenti wrote: Mr frÿffe9dÿffe9ric pouchal wrote: I would like to disable the jingle at boot time you can lower the volume while the jingle is playing. OFW will store it and remember it for the next boot. I wish the rest of our software stack was

Re: Kernel configuration options

2008-01-03 Thread Mitch Bradley
[EMAIL PROTECTED] wrote: rant ... the biggest benefits look like they would be in cleaning up the userspace boot process. there is a _lot_ of stuff started that may not be needed in the stable hardware environment of the XO laptop where there is really only one program active at a time

Re: shutting off wireless for air travel

2008-01-03 Thread Mitch Bradley
Ricardo Carrano wrote: I would suggest: rmmod usb8xxx That is (or at least used to be) ineffective, as the module would just get reloaded automatically. The workaround is (was?) to rename /lib/firmware/usb8388.bin -- Ricardo Carrano -- Original Message --- From:

Log of Software meeting, 2008-01-03

2008-01-03 Thread Mitch Bradley
[16:00] *** now talking in #olpc-meeting [16:01] Mitch_Bradley Happy New Year, everyone. [16:02] m_stone hear, hear. [16:02] cjb You too. [16:02] jg evening all. [16:02] jg 'appy new year [16:03] jg Mitch_Bradley: I gather you don't have to deal with our intel friends anymore [16:03] cjb I

Re: Kernel configuration options

2008-01-02 Thread Mitch Bradley
John Richard Moser wrote: Bernardo Innocenti wrote: Tom Sylla wrote: http://openbios.org/viewvc/cpu/x86/pc/olpc/lxmsrs.fth?view=markuprevision=739root=OpenFirmware has: msr: .1810 fdfff000.fd000111. \ Video (write through), fbsize which is setting the framebuffer as

Re: open firmware question

2008-01-02 Thread Mitch Bradley
Ricardo Carrano wrote: How do I do the opposite of copy-nand - copy the OS image _from_ the nand into a USB key? ok save-nand u:\foo.img -- Ricardo Carrano ___ Devel mailing list Devel@lists.laptop.org

Re: Circumventing kernel signing

2008-01-02 Thread Mitch Bradley
At some point, when these fairly obvious loopholes that we have known about since forever are closed, we plan to change the key so new machines will only run the more secure OS versions. Old machines will continue to be vulnerable until they are upgraded to new firmware with the new key, and

Re: Kernel configuration options

2008-01-01 Thread Mitch Bradley
From a security standpoint, there is an advantage to building in everything. The main kernel is verified with a crypto signature before it is executed. Loading a module without first verifying a similarly-strong signature weakens the security. Modules are a good idea for kernels that are

Re: Updates API documentation for everything.

2008-01-01 Thread Mitch Bradley
Edward Cherlin wrote: Does anybody know of a documentation tool for Open Firmware, or for FORTH more generally? Exploring using 'words' and 'see' is fun up to a point if you're learning FORTH, but really doesn't cut it for supporting documentation. I presume that you have seen

Re: How can the XO be made accessible to blind

2007-12-30 Thread Mitch Bradley
David W Hogg wrote: On a somewhat related note, is there any way to attach an external monitor to the XO? I would love to give my astronomy research seminars in the spring from my G1G1 XO; but this would also be useful for those with impaired sight (some of my colleagues need to immensely

Re: OLPC News 2007-12-30

2007-12-30 Thread Mitch Bradley
Richard noticed that on the community-development list there are at least two reports of the EC going terminal, meaning that on boot they get the error message: EC problem. Remove all power and restart. We need to get those machines to Cambridge to investigate further. It is unlikely

Re: OLPC News 2007-12-30

2007-12-30 Thread Mitch Bradley
Jaya Kumar wrote: On Dec 31, 2007 3:23 AM, Mitch Bradley [EMAIL PROTECTED] wrote: resetting without the EC's knowledge. There is a 2-line patch in the ticket; it makes the kernel reboot using the approved EC interaction. Looking at your trac entry, I see: The change is in arch

Re: OLPC News 2007-12-30

2007-12-30 Thread Mitch Bradley
Richard A. Smith wrote: Mitch Bradley wrote: Richard noticed that on the community-development list there are at least two reports of the EC going terminal, meaning that on boot they get the error message: EC problem. Remove all power and restart. We need to get those machines to Cambridge

NAND FLASH wear-out

2007-12-28 Thread Mitch Bradley
I would hate to fill up my 1GB and use all my flash write cycles... The probability of wearing out NAND FLASH is much less than people seem to think. The part is rated for 100,000 *erase* cycles per block. There are 64 independently-writable 2K pages per block. Writing doesn't count

Re: I got a developer key -- now what? :)

2007-12-28 Thread Mitch Bradley
M. Edward (Ed) Borasky wrote: Chris Ball wrote: Hi, I signed up for a developer key, so I have one now. But what can I do with it? You can do anything that you'd expect to do with a standard laptop; install any operating system, and flash a new BIOS. How can I be sure

Re: 3rd Fedora disk curdle

2007-12-27 Thread Mitch Bradley
This reminds me of a situation I ran into about a zillion years ago, using V6 Unix: The filesystem and the swapper disagreed about the boundary between the FS and swap areas, so parts of the FS were getting swapped onto. I suppose something like that might be possible with certain

Re: SD card won't power up in OFW

2007-12-26 Thread Mitch Bradley
OFW's card prober. Mitch Bradley James Lee wrote: I hope this isn't a bad place to post this. I have a Kingston 4GB Class 4 SDHC card which I'd like to use with my XO (flashing, alternate distros, etc), but it does not seem to work in OFW. Factory formatted, I get the following: ok dir sd

Re: SD card won't power up in OFW

2007-12-26 Thread Mitch Bradley
I think we will need to debug this problem interactively on IRC. The card detection is fairly complicated, depending on v1 vs. v2 SD physical layer, MMC vs SD, SD vs SDHC, and on the set of operating voltages that the card supports. There are too many code paths for me to guess which one is

Re: Is DRM on every G1G1 laptop?

2007-12-24 Thread Mitch Bradley
John Gilmore wrote: Please note that there are users like me who have the exact problem described by http://dev.laptop.org/ticket/5558. I have been totally __unable__ to gain access to the Open Firmware ok prompt. Please read the top section of

Re: multiple MTD partitions

2007-12-23 Thread Mitch Bradley
The main reason you have gotten no feedback is because we are ultra-busy right now with mass-production and other issues. I have been looking into partitioning schemes for some time now. We need to have a discussion about this, but now is not the time. Artem Bityutskiy wrote: Hello Mitch,

Re: suspend/resume support?

2007-12-23 Thread Mitch Bradley
Jake B wrote: Are XO developers planning to implement support for suspend-to-RAM/resume on the XO? Please let me know. Thanks. That feature is already implemented. Press the power button and it suspends; press again to resume. Lid closures do it too. Jake

Re: Conway's Life activity

2007-12-23 Thread Mitch Bradley
You may be amused to know that the firmware has an Easter Egg of the Conway's Life. If you press the rocker pad (left side of screen) to the right after powering on, you will get a randomly-select amusement, one of which is Life. It uses the traditional life-death rule with a wrap-around

Re: upgrading firmware on activated laptops

2007-12-22 Thread Mitch Bradley
Michael Stone wrote: Emiliano, First things first - caveat emptor. Direct access to the firmware makes it very easy to brick your machine. Do not attempt to use these instructions unless you are prepared to deal with the possible consequences of mistakes and/or failure. Consult OFW experts

Announcing Q2D07, withdrawing Q2D05 and Q2D06

2007-12-07 Thread Mitch Bradley
is set correctly (if your machine is working now, the RTC is okay), it won't go bad unless you remove the RTC battery or the RTC battery fails (unlikely for several years) or you go out of your way to invalidate the RTC value. My apologies for this egregious bug. Mitch Bradley

Re: joyride, ship.1 etc.

2007-12-06 Thread Mitch Bradley
Asheesh Laroia wrote: On Thu, 6 Dec 2007, Rafael Enrique Ortiz Guerrero wrote: Hi all i've put some notes in here.. http://wiki.laptop.org/go/Stable_Upgrade Thanks for writing it up! I just tried it with a USB memory key (an SD card in a multi-card reader), and my XO said

Re: OpenFirmware password

2007-12-05 Thread Mitch Bradley
ffm wrote: I am not completely sure how to set it for the XO-1. I have followed instructions for other implementations of OpenFirmware, but without success. Password security is not enabled in the XO version of OFW. Most of the deployed systems will be in secure mode, in which you can't

Re: no serial number ?

2007-12-05 Thread Mitch Bradley
I wonder how the WP tag got set? Alexander M. Latham wrote: --- [EMAIL PROTECTED] wrote: At powerup it says S/N Unknown, then could not activate this XO Serial number: SHF When I try the activative procedure, I instead get: No serial number in mfg data No serial number

Re: no serial number ?

2007-12-05 Thread Mitch Bradley
[EMAIL PROTECTED] wrote: Scott, Um, I don't like those instructions at all. Why not just set the serial number in SPI flash, and set the 'ak' tag while you're at it? Mitch suggested that first, and it didn't work. Setting a SN tag plus a U# tag did work, According to my recall, it

Re: WSJ

2007-11-25 Thread Mitch Bradley
Mike C. Fletcher wrote: It's not About the Hardware: In principle, that is true. In practice, it is the hardware that has been responsible for all the attention. If the project had been just a software framework to support constructivist education, the worldwide response would have been ho

Re: Telling time (was: StopWatch activity)

2007-11-16 Thread Mitch Bradley
This is a Color of the Bikeshed issue. Give it a rest. ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel

Re: StopWatch activity

2007-11-14 Thread Mitch Bradley
Eben Eliason wrote: Is there a reason you haven't made the clock and the stopwatch different functions for a single activity? I second that. I think these could be integrated While you're at it, how about integrating the camera activity with it, so it could be like Dick Tracy's

Re: StopWatch activity

2007-11-14 Thread Mitch Bradley
Eben Eliason wrote: On Nov 14, 2007 4:07 PM, Michael Stone [EMAIL PROTECTED] wrote: On Wed, Nov 14, 2007 at 02:36:08PM -0500, Eben Eliason wrote: We still intend to incorporate that - the overhead of launching an activity is silly. More precision would make this particular

Re: [PyCON-Organizers] OLPCs not considerate wireless users

2007-11-12 Thread Mitch Bradley
Ivo Emanuel Gonçalves wrote: I've noticed that mesh activity appears to be ALWAYS on. Even when the laptop is not doing anything, as in not conected to a school/local mesh and not sharing any activity. Sometimes even on Suspend mode I see the Wireless activity light flashing. I'm sure this

Re: Generating tones with computer sound card

2007-10-31 Thread Mitch Bradley
Arjun Sarwal wrote: Hi, I need to do some testing (need sine waves of 50hz, 1khz, 10khz) and I am unable to get hold of a function generator. I was thinking of using my computer (PC) sound card to generate these tones. I am wondering if anybody has done this - so that I may know how clean

An opportunity to help - printer configuration

2007-10-30 Thread Mitch Bradley
The Give One, Get One program will put many XO laptops in situations unlike the design target. In particular, North American G1G1 purchasers won't be in clear school/village/community clusters. For the target country deployments, we have been assuming that printing will be done rarely (as

Re: Music on the XO

2007-10-30 Thread Mitch Bradley
Seth Woodworth wrote: Slightly off of the conversational thread here but: Information on the specific output spectrum capabilities might improve transcoding of audio files into smaller file sizes. If there is no, or poor quality, auditory response below or above a given threshold, it might

System Software Meeting Minutes - 2007-10-30

2007-10-30 Thread Mitch Bradley
, DCON) going to suspend - Close as fixed 2401 Update.2 rsmith Wakeup event is repeated continuously (EC and kernel) - The recipe given by MitchCharity has been reproduced by Mitch Bradley - Not a show-stopper because the system recovers if you press the button again - We don't want spin

Announcing q2d03

2007-10-29 Thread Mitch Bradley
http://wiki.laptop.org/go/OLPC_Firmware_q2d03 ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel

Re: tunes for 11/2

2007-10-27 Thread Mitch Bradley
Quote of the Day: Did Apple design this? - The first words uttered by Noura, a woman in her twenties, when she saw the xo laptop for the first time on a recent plane flight. Fractured song lyric of the day: Jobs didn't make the little green laptops, and it don't rain in Indianapolis in

Re: X won't come up on C2

2007-10-24 Thread Mitch Bradley
So far the new keyboard descriptions in the manufacturing data are a paper spec only. By that I mean that, as far as I know, the new tags are not present in the pre-build machines, and the OS doesn't look for them. (That is not quite true for OFW; it will use the new KA tag if it exists). One

Re: [design] Lack of built-in serial and // port ?

2007-10-23 Thread Mitch Bradley
Ian Daniher wrote: Samir, IIRC, there *is* a serial port, but due to constraints I have not been made aware of, It isn't exposed, instead it is buried inside the case. One primary constraint is that there is absolutely no room left for other connectors to come out. Yes, I know there are

Re: Calibration of Software/Measure activity

2007-10-21 Thread Mitch Bradley
Ceramic resonators are less expensive than crystals. Their stability and accuracy is not as good as crystals, but is much better than RC oscillators. The waveform that comes from most oscillators is nominally a square wave, but when the frequency gets into the tens of megahertz range, it

Re: slightly long and detailed proposal for documentation-translation workflow

2007-10-16 Thread Mitch Bradley
At the current rate of XO software churn, any printed book will be obsolete/inaccurate before the ink is dry. Todd Kelsey wrote: I have been struggling with my literary agent and trying to knock someone over the head with a wet noodle into realizing that there *will* be a market for a book,

Announcing firmware Q2D01

2007-10-16 Thread Mitch Bradley
http://wiki.laptop.org/go/OLPC_Firmware_q2d01 This is the release for the mass production build. ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel

Re: B2-7 - best build and firmware version?

2007-10-14 Thread Mitch Bradley
Todd Kelsey wrote: Hello - trying to get b2-7 working for demo of mesh between b2-7 and b4 running 542- wondering what the best firmware/build combination would be. I believe it has build 542 and q2c28 -- wasn't sure if it should have q2c26. notes indicate 542 and firmware tested for

Re: something went wrong in the file system

2007-10-12 Thread Mitch Bradley
This sounds a lot like a problem that I was working on yesterday. Can you go on IRC (freenode, #olpc) ? If so, I would like to work with you to see if my latest firmware works around your problem. Yoshiki Ohshima wrote: Hello, My B4 with 616 build went into some interesting state. I

Re: keyboard symbols

2007-10-09 Thread Mitch Bradley
Bert Freudenberg wrote: On Oct 9, 2007, at 8:15 , Albert Cahalan wrote: I notice that some keyboards lack the multiplication and division symbols. Providing them for all kids would be good, even if they need to move elsewhere. Why those? They are not used universally. And even in

Re: Where I can download source code of OFW for OLPC?

2007-10-09 Thread Mitch Bradley
svn://openbios.org/openfirmware Build by make in cpu/x86/pc/olpc/build Kein Yuan wrote: Dear list, Can anybody here kindly let me know where I can download OFW source code for OLPC? Under _ _http://dev.laptop.org/git there is comments says No commits. Thanks a lot, Kein

Re: New manufacturing data flags for keyboards (2nd draft).

2007-10-08 Thread Mitch Bradley
The proposal for the ASCII keyboard map is detailed in: http://wiki.laptop.org/go/Manufacturing_Data#Keyboard_ASCII_Map In the process, I extended the tag format in an upward-compatible fashion to allow value strings longer than 127 bytes:

Re: New manufacturing data flags for keyboards (2nd draft).

2007-10-08 Thread Mitch Bradley
/07, *Mitch Bradley* [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote: The proposal for the ASCII keyboard map is detailed in: http://wiki.laptop.org/go/Manufacturing_Data#Keyboard_ASCII_Map In the process, I extended the tag format in an upward-compatible fashion to allow

Re: New manufacturing data flags for keyboards (2nd draft).

2007-10-06 Thread Mitch Bradley
Jim's proposal solves the X problem, and I think we should adopt it. We also have the problem of letting OFW and the Linux kernel know enough about the keyboard so developers can type US ASCII , which is the common subset that is sufficient for managing diagnostics, booting, and installation

Re: New manufacturing data flags for keyboards (2nd draft).

2007-10-06 Thread Mitch Bradley
Bernardo Innocenti wrote: Mitch Bradley wrote: One solution would be to include a lot of keymaps in OFW and select one based on the new KL tag. However, I'm not keen on having to carry around a lot of keymaps in the ROM, and extend that list from time to time. There's also

Re: [Devel-machines] Testing of firmware and base system on B2 and B1.

2007-09-28 Thread Mitch Bradley
Carl-Daniel Hailfinger wrote: On 27.09.2007 01:44, Jim Gettys wrote: As we run up to mass production of systems, the team at OLPC must focus its efforts on testing and bug fixing on the mass-production hardware. To date, we've been careful to ensure that our firmware and software works

Re: [Devel-machines] Testing of firmware and base system on B2 and B1.

2007-09-28 Thread Mitch Bradley
Mitch Bradley wrote: B3 and later machines are essentially identical as far as the firmware is concerned. OFW senses the board revision and reports it in the device tree, but does behave differently as a result of board revision difference. I meant does

Re: Console Mode, DOS Emulator on OLPC

2007-09-25 Thread Mitch Bradley
OLPC does not support VGA/EGA/CGA graphics, so the display code for all those old programs will not work. big one wrote: Booting to console mode / svgalib possible Can someone put a wiki / HOWTO about booting OLPC to console mode, setting up svgalib, SDL, xinit command and xinitrc?

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