Re: Shutdown after resume using power button

2007-07-08 Thread Mitch Bradley
Jordan Crouse wrote: Jordan, I remember you mentioned that reading PM1_STS might be unreliable... Can you shed more light into the issue? Hmm - I don't remember that. PM1_STS should be reliable at this point, assuming nobody has touched it since we resumed. I think there is

Re: suspend-to-disk

2007-07-08 Thread Mitch Bradley
Andres Salomon wrote: ... Implementation questions: I'm not going to concern myself with our B1s, for they have more ram and less nand. Our B2s have 128MB of ram, and 512MB of nand; B3s and up have 256MB of ram, and 1GB of nand. We need to figure out just how much space we'd need to set

Re: Early boot, activation, upgrades

2007-07-09 Thread Mitch Bradley
C. Scott Ananian wrote: On 7/9/07, Mitch Bradley [EMAIL PROTECTED] wrote: I looked at those git trees and didn't see the python runtime stuff in the initramfs tree. How does it get included, and how big is it? Packages in initramfs are specified by: http://dev.laptop.org/git?p

Re: Early boot, activation, upgrades

2007-07-09 Thread Mitch Bradley
C. Scott Ananian wrote: On 7/9/07, Mitch Bradley [EMAIL PROTECTED] wrote: At that 3M size, I'm beginning to have second thoughts about the one initrd for both activation and normal booting idea. A busybox (statically linked with uclibc) with enough trimmings to do darn near anything

Re: Early boot, activation, upgrades

2007-07-11 Thread Mitch Bradley
More benchmarks for bios_crypto on LX: Whirlpool: 1.16 sec / MiB SHA512: 0.42 sec / MiB SHA256: 0.28 sec / MiB --- New result (SHA256 is 1.5x the speed of SHA512) RSA verification: 0.025 sec / hash ECC521 verification: 1.13 sec / hash ECC256 verification: 0.31 sec / hash --- New

Re: System software teleconference meeting minutes - 2007-07-17

2007-07-18 Thread Mitch Bradley
Carl-Daniel Hailfinger wrote: Hi, On 18.07.2007 04:25, Mitch Bradley wrote: OLPC System Software Teleconference, 2007-07-17 Mitch is close to having Forth running on the EC. Is this on the opensource EC code? It is one possibility for the base of the opensource EC code

Re: Automated testing of activities

2007-07-18 Thread Mitch Bradley
Kent Quirk wrote: Is automated testing intended for more than just battery life testing? If not, is it really necessary for every activity to support it? If so, what do you expect to accomplish? Will it actually save more than the amount of time taken to implement it for a given activity?

Re: Location of Open Firmware BIOS Source code

2007-07-24 Thread Mitch Bradley
It's in Subversion at svn://openbios.org/openfirmware . Edward J. Krohne wrote: To All, Can anyone help me find the location of the OFW source code? The link on the git page on the OLPC web site is empty (e.g. not committed). In the trac database, it is mentioned that the source /is/

Re: Why need Q2C19 while upgrade build from 536 to 537

2007-07-27 Thread Mitch Bradley
[EMAIL PROTECTED] wrote: Hi, folks: While I upgrade build image from 536 to 537 using the autoreinstallation procedure from USB key, I saw“ unmounting root(this will take a while, unless you've got firmware Q2C19)”in the scrolling booting message, as the description said, it halted a

Re: Create CRC file

2007-08-14 Thread Mitch Bradley
Juliano Bittencourt wrote: Hi, I need some help to create the crc file of the OS image. I created a customized image file for the trial school in Porto Alegre. But now I'm having problems trying to figure out how to create the crc file. Any help will be appreciated. git

Re: Draft manifest format specification.

2007-08-14 Thread Mitch Bradley
Albert Cahalan wrote: For linking within a bundle, the easy answer is to STOP USING ZIP. At least allow a standard Linux archiver (tar, cpio, or pax) as an alternative to that crufty old DOS archiver. zip is younger than either tar or cpio, so old is an invalid criticism. And I reject the

Re: some first impressions

2007-08-16 Thread Mitch Bradley
Yoshiki Ohshima wrote: Arjun, 1) eToys: It would be very nice to have support for Analog Input in eToys. You could use my code - See http://dev.laptop.org/git?p=projects/measure;a=blob_plain;f=audioGrab.py;hb=HEAD (getting samples) and

Re: some first impressions

2007-08-16 Thread Mitch Bradley
It might be nice if there were a driver to access the GPIO, but I didn't see one in a quick scan of the kernel source. It turns out that there is a GPIO driver - the source is in char/drivers/cs5535_gpio.c - and it is available as a kernel module: modprobe cs5535_gpio However, nobody

Re: some first impressions

2007-08-16 Thread Mitch Bradley
. - Jim On Thu, 2007-08-16 at 09:24 -1000, Mitch Bradley wrote: Yoshiki Ohshima wrote: Mitch, Thank you. As I wrote on http://dev.laptop.org/ticket/2800, what we would like to have is C functions. Then, I can wrap them as Squeak primitives. Probably I can just rip

Re: some first impressions

2007-08-18 Thread Mitch Bradley
Yuan Chao wrote: On 8/18/07, Guylhem Aznar [EMAIL PROTECTED] wrote: Jim said the SD port was not for removable media use - I fully But then the current slot is not fulfilling either goals. It's hard to use, and still open for the water to get it. Maybe the plastic could There are

System Software Teleconference Meeting Minutes - 2007-08-21

2007-08-21 Thread Mitch Bradley
OLPC System Software Teleconference, 2007-08-21 Participants: Jim, Mitch, Jordan, Chris Ball, Quanta, Andres, wad, J5, Noah, kim, Joel, richard == Status == Action items from last week: #1396 -- We're waiting on the problem with keyboard repeat events. * AI: Richard to get us a release

Re: no subject

2007-08-22 Thread Mitch Bradley
Mike Usmar wrote: OK, hopefully this is an easy question I want to upgrade to build 542, and have the downloaded and un zipped to a UDB drive in boot the olpc-auto.zip, and the latest OS image and .crc file, so in the boot directory I have 6 files q2c24.rom; os542.img; os542.crc;

Re: no subject

2007-08-22 Thread Mitch Bradley
In any case, the recipe to fix it is to do the firmware upgrade first, manually: ok flash /usb/disk:\boot\q2c25.rom After that you will have up-to-date firmware and the rest of the installation will probably go smoothly. Mike Usmar wrote: OK, hopefully this is an easy question I want to

Re: BIOS prompt at q2c25 + B2?

2007-08-23 Thread Mitch Bradley
Polychronis Ypodimatopoulos wrote: How do I enter the BIOS prompt on q2c25? It seems I can no longer use ESC tryied other buttons too ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel

Re: Questions on LinuxBIOS and OpenFirmware

2007-08-24 Thread Mitch Bradley
Ivan Krstić wrote: On Aug 24, 2007, at 7:25 AM, Kein Yuan wrote: So in short words, OLPC is using LinuxBIOS to do low level HW init, then transfer control to OFW, which also acting as boot loader to load Linux OS, right? Correct. Sorry, not correct. LinuxBIOS is not

Re: Unable to update my machine

2007-08-30 Thread Mitch Bradley
The problem is ostensibly fixed in a new version of firmware that will be released in the next couple of days. The problem is actually a little more complicated than having a partition table or not. There was a situation where a disk could appear to both have a partition table, and also have

Re: Pippy and Calculate

2007-09-05 Thread Mitch Bradley
I don't think Python's evaluations are useful as a calculator to a child, though. You would have to explain this: 2+2 4 3/4 0 When I was in elementary school, we first learned division with remainder, so the result of 3 / 4 is 0 remainder 3. Fractions

Re: headtracker / mag lens / macro lens ([EMAIL PROTECTED])

2007-09-05 Thread Mitch Bradley
[EMAIL PROTECTED] wrote: I tried not to move my eyes but my head and looking to the four corners and the center of the XO display. The display is very small so I moved my head really not to much ... Maybe I have got a knot in my brain. I'm pretty sure that if I had to keep my head

Re: Could you teach me how fine the physcial addtess?

2007-09-06 Thread Mitch Bradley
Adding devel@ to the list because this is generally useful information Jordan Crouse wrote: On 06/09/07 14:29 +0100, David Woodhouse wrote: On Thu, 2007-09-06 at 20:57 +0800, [EMAIL PROTECTED] wrote: Could you teach me how find the DCOM register in CPU? For example, I want to

Re: Pippy and Calculate - Evolution Solution

2007-09-07 Thread Mitch Bradley
Yoshiki Ohshima wrote: Remember the famous quote from Jerome Bruner: We begin with the hypothesis that any subject can be taught effectively in some intellectually honest form to any child at any stage of development. Sounds more like a statement of faith than a

Re: save-nand problem

2007-09-08 Thread Mitch Bradley
Yuan Chao wrote: On 9/8/07, Juliano Bittencourt [EMAIL PROTECTED] wrote: I'm having problems using the save-nand OFW command to created a customized version of the OS. In the near past I used this command 1. When I try to create the image file with the command

Re: Marvell

2007-09-10 Thread Mitch Bradley
It is unclear to me that RMS's influence extends to those areas where OLPC could use a boost. OLPC already has pretty good support from the Open Source community as a whole. I doubt that gaining his blessing will make a substantial difference there. I presume that the governments who make XO

Re: save-nand problem

2007-09-11 Thread Mitch Bradley
Kim Quirk wrote: Hi Juliano, I just went through this process myself last night. The first time I did a save-nand it took many minutes. Unfortunately I had to do it again since I missed a few things. The second time it took many hours. It did complete (which surprised me). I tried it a

Re: B4 autoinstallation fails (gives a 'help' prompt)

2007-09-14 Thread Mitch Bradley
Asko Kauppi wrote: Current firmware: Q2C25 Upgrading to: Q2C26, OS579 What machine type? A-test? B1? B2-1? B2-2? B3? B4? C1? ** Trying with SD card ** (use of the microSD adapter is a BIIIG mistake, came out half torn! :) Pressing 'X' and powering on takes me to: USB 2

Announcing OFW q2c27

2007-09-19 Thread Mitch Bradley
http://wiki.laptop.org/go/OLPC_Firmware_q2c27 ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel

Re: startup sound

2007-09-21 Thread Mitch Bradley
In recent (more recent than c27) test builds, you can adjust the volume of the startup sound using the keyboard keys for sound volume. The volume thus established persists across reboot. If you turn the volume down all the way, the sound will be disabled completely.

Re: Performance tuning for the XO

2007-09-22 Thread Mitch Bradley
C. Scott Ananian wrote: We make currently make heavy use of hashing in our upgrade verification infrastructure. I'd like to find the fastest possible implementation of the SHA-256 and/or RIPEMD-160 algorithms. Can anyone offer me advice on the proper compilation options and strategies for

Re: Modification of Public OLPC Software

2007-09-24 Thread Mitch Bradley
OLPC does not have a conventional BIOS, so any software that depends on one will not work. big one wrote: I often use Linux without any X-Windows, but only svgalib: mplayer, links 2.0 browser, mp3blaster, etc. On FreeDOS (Free Disk Operating System), I can use display, arachne, pppd etc.

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?

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: 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: 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: 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: 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: 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: 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: 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: [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: 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: 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

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

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

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

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: 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: 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: 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: 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
Is the wp manufacturing data tag set? If not, the systems should not go into secure mode, and should therefore be recoverable. [EMAIL PROTECTED] wrote: Alexander, Unfortunately, it sounds like you have a bricked machine. oh well, them's the breaks :-) Is there a way we can tell if

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: 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

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: 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

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: XO touchpad

2007-12-24 Thread Mitch Bradley
Ross Andrews wrote: I got my laptop through G1G1 last week, and I've been trying to play with all the neat facets of the hardware, but I'm unable to get the other mode of the touchpad (the stylus mode) to do anything. Is there a particular activity that uses it? Is there some way I can

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: 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: 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

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: 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

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: 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: NAND FLASH wear-out

2008-01-02 Thread Mitch Bradley
Benjamin M. Schwartz wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Mitch Bradley wrote: The part is rated for 100,000 *erase* cycles per block. There are 64 independently-writable 2K pages per block. Writing doesn't count in the wear calculation - just erasing. What

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: 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: 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: [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: 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: 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: 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

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