Re: SDIO on external SD slot
On 8 March 2011 09:52, Martin Langhoff wrote: > I don't expect 3G Wifi access points to pack high-end wifi controllers > and antennas capable of holding up with 40 users with our network > usage profile (think telepathy/salut). > > So again ~20 XO/Sugar users is as much as I'd recommend. Perhaps lower > still, you'll want to test with actuall gear available there. The gear being used officially supports 20 wi-fi clients. We could connect an XS and a better WAP to increase that. Without an XS, I'd imagine there'd be a lot of P2P XMPP traffic that would increase the load on the WAP. Sridhar ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [Server-devel] Hidden SSID and Proxy settings
Excerpts from Jerry Vonau's message of Mon Mar 07 09:51:30 +0100 2011: > Yes, think that would be a good idea, with this method connections.cfg > can be empty. Perhaps network.py can just use/create the needed file > for /etc/NetworkManager/system-connections/ or make that an option > available in control panel. Using system instead of user settings in Sugar has been planned for some time now [1], but I didn't get around to working on it. The first beta of NetworkManager 0.9 has been released [2] a few days ago. As of that version, the distinction between system and user settings is gone for good [3], so it makes more sense to migrate [4] to 0.9 right away instead of moving to system settings first. As part of the 0.9 migration I'd like us to show configured connections in addition to the currently visible access points. This should help users working in less-than-perfect environments (disabled beacons, VPNs, access points on different sites that need different credentials but have the same SSID, etc.). We should also try to move our Ad Hoc auto-connect logic into NetworkManager. Not only would it make our code simpler and easier to debug, but non-Sugar users would benefit from the automatic "under the tree" networking as well. Even Mac OS X seems to have something similar to automatic Ad Hoc networking + link-local collaboration now (called AirDrop [5]). Sascha [1] https://bugs.sugarlabs.org/ticket/1884 [2] http://mail.gnome.org/archives/networkmanager-list/2011-March/msg00020.html [3] http://live.gnome.org/NetworkManager/ApiSimplify [4] http://projects.gnome.org/NetworkManager/developers/migrating-to-09/ [5] http://www.apple.com/macosx/lion/ -- http://sascha.silbe.org/ http://www.infra-silbe.de/ signature.asc Description: PGP signature ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: SDIO on external SD slot
On Mon, Mar 7, 2011 at 4:51 PM, James Cameron wrote: > Therefore I'd put the threshold for proxy advantage closer to ~ 40 > users. That's not the only consideration -- please be kind enough to consider I may be making a multi-factor recommendation (without time to write a book about it). I don't expect 3G Wifi access points to pack high-end wifi controllers and antennas capable of holding up with 40 users with our network usage profile (think telepathy/salut). So again ~20 XO/Sugar users is as much as I'd recommend. Perhaps lower still, you'll want to test with actuall gear available there. cheers, m -- martin.langh...@gmail.com mar...@laptop.org -- Software Architect - OLPC - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Re: [OLPC-AU] SDIO on external SD slot
James I have a Dodo USB using the Optus network in Australia. I am located in the fringe of Melbourne. If I can help with testing just ask. Tony > On Mon, Mar 07, 2011 at 09:54:07AM -0500, Martin Langhoff wrote: > > On Mon, Mar 7, 2011 at 1:12 AM, Sridhar Dhanapalan > > wrote: > > > Thanks Wad, Peter and Martin. We are currently trialling the use of 3G > > > Wifi access points, with government-approved content filtering > > > supplied by the telco. Just to be thorough, I am also investigating > > > what our other options may be. > > > > Interesting. For anything larger than ~ 20 users, I definitely > > recommend an XS. The XS can then be your bridge between 3G and Wifi > > The data rate and latency of the Australian "Telstra Next G" 3G service > are quite reasonable ... for the regional areas it is a dual-cell HSPA > with 14.4 Mbit/s deployed nationwide. Timing radius out to about 120km > from a high enough tower operating on 850 MHz band. Modems typically > obtain 3 Mbit/s or 7.2 Mbit/s of the available 14.4 Mbit/s. The uplink > and peering are excellent, with latencies of the order of 50ms to 100ms > even in the outback. > > Therefore I'd put the threshold for proxy advantage closer to ~ 40 > users. > > The capital city towers are configured differently, something around 42 > Mbit/sec. I've heard there is more contention and packet loss in these > areas, but haven't measured them personally. > > -- > James Cameron > http://quozl.linux.org.au/ > ___ > OLPC-AU mailing list > olpc...@lists.laptop.org > http://lists.laptop.org/listinfo/olpc-au > > _ > This mail has been virus scanned by Australia On Line > see http://www.australiaonline.net.au/mailscanning ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: SDIO on external SD slot
On Mon, Mar 07, 2011 at 09:54:07AM -0500, Martin Langhoff wrote: > On Mon, Mar 7, 2011 at 1:12 AM, Sridhar Dhanapalan > wrote: > > Thanks Wad, Peter and Martin. We are currently trialling the use of 3G > > Wifi access points, with government-approved content filtering > > supplied by the telco. Just to be thorough, I am also investigating > > what our other options may be. > > Interesting. For anything larger than ~ 20 users, I definitely > recommend an XS. The XS can then be your bridge between 3G and Wifi The data rate and latency of the Australian "Telstra Next G" 3G service are quite reasonable ... for the regional areas it is a dual-cell HSPA with 14.4 Mbit/s deployed nationwide. Timing radius out to about 120km from a high enough tower operating on 850 MHz band. Modems typically obtain 3 Mbit/s or 7.2 Mbit/s of the available 14.4 Mbit/s. The uplink and peering are excellent, with latencies of the order of 50ms to 100ms even in the outback. Therefore I'd put the threshold for proxy advantage closer to ~ 40 users. The capital city towers are configured differently, something around 42 Mbit/sec. I've heard there is more contention and packet loss in these areas, but haven't measured them personally. -- James Cameron http://quozl.linux.org.au/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Anybody has a Go Go board?
-- if you can connect your sexy gogo board to your friendly linux machine and type sudo lsusb -v > gogo-info.txt and email that txt file to me. thanks! m -- martin.langh...@gmail.com mar...@laptop.org -- Software Architect - OLPC - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: SDIO on external SD slot
On Mon, Mar 7, 2011 at 1:12 AM, Sridhar Dhanapalan wrote: > Thanks Wad, Peter and Martin. We are currently trialling the use of 3G > Wifi access points, with government-approved content filtering > supplied by the telco. Just to be thorough, I am also investigating > what our other options may be. Interesting. For anything larger than ~ 20 users, I definitely recommend an XS. The XS can then be your bridge between 3G and Wifi m -- martin.langh...@gmail.com mar...@laptop.org -- Software Architect - OLPC - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: cpia driver for microscope: any success?
On Sun, Mar 6, 2011 at 8:12 PM, Kevin Gordon wrote: > just help me with another issue. Cheese image freezes 100% of the time on > the XO 1.0 and XO 1.5, on either Sugar or Gnome when the machine is also > displaying through an external USB2VGA monitor. Doesnt matter whether there > is an external camera, or the built-in - image is frozen. Kevin, you are saying that - build 10.1.3 - boot XO with a supported USB2VGA adapter - no other usb devices attached - get to gnome - start cheese - freeze? can you confirm, and file a bug about this with more detail? It sounds like cheese/gstreamer are probing the usb bus or its devices, and do something stupid with the USB2VGA adapter. cheers, m -- martin.langh...@gmail.com mar...@laptop.org -- Software Architect - OLPC - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [Server-devel] Hidden SSID and Proxy settings
On Mon, 2011-03-07 at 11:49 +0100, Sascha Silbe wrote: > Excerpts from Jerry Vonau's message of Mon Mar 07 09:51:30 +0100 2011: > > > Yes, think that would be a good idea, with this method connections.cfg > > can be empty. Perhaps network.py can just use/create the needed file > > for /etc/NetworkManager/system-connections/ or make that an option > > available in control panel. > > Using system instead of user settings in Sugar has been planned for some > time now [1], but I didn't get around to working on it. > 11.2.0 is using F14, you gain the availability of mncli, and dsd's MN patches for mesh merged in.[6] Sorry haven't booted 11.2.0 yet, does the auto rollover to ad-hoc occur the same way as in 10.1.3? > The first beta of NetworkManager 0.9 has been released [2] a few days > ago. As of that version, the distinction between system and user > settings is gone for good [3], so it makes more sense to migrate [4] to > 0.9 right away instead of moving to system settings first. > Don't think that will make F15. > As part of the 0.9 migration I'd like us to show configured connections > in addition to the currently visible access points. This should help > users working in less-than-perfect environments (disabled beacons, VPNs, > access points on different sites that need different credentials but > have the same SSID, etc.). > Wonder if just launching nm-connection-editor with a button would be enough to keep users happy. > We should also try to move our Ad Hoc auto-connect logic into > NetworkManager. Not only would it make our code simpler and easier to > debug, but non-Sugar users would benefit from the automatic "under the > tree" networking as well. Even Mac OS X seems to have something similar > to automatic Ad Hoc networking + link-local collaboration now (called > AirDrop [5]). > Think we can gain that by reading/writing to the NM config directly. Issue right now is if the connection drops while using keyfile, sugar looks for the connections.cfg file, which would be blank and prompts for the passphase. Split the Ad Hoc auto-connect for 0.9. matching up with the new api. Jerry > Sascha > > [1] https://bugs.sugarlabs.org/ticket/1884 > [2] > http://mail.gnome.org/archives/networkmanager-list/2011-March/msg00020.html > [3] http://live.gnome.org/NetworkManager/ApiSimplify > [4] http://projects.gnome.org/NetworkManager/developers/migrating-to-09/ > [5] http://www.apple.com/macosx/lion/ [6] http://mail.gnome.org/archives/networkmanager-list/2009-August/msg00033.html ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
RE: [Sugar-devel] [Server-devel] Hidden SSID and Proxy settings
> -Original Message- > From: sugar-devel-boun...@lists.sugarlabs.org [mailto:sugar-devel- > boun...@lists.sugarlabs.org] On Behalf Of Sascha Silbe > Sent: Monday, March 07, 2011 4:49 AM > To: Jerry Vonau > Cc: Ardito; sugar-devel; dr.ger...@xo15-sascha.sascha.silbe.org; James > Cameron; OLPC Devel > Subject: Re: [Sugar-devel] [Server-devel] Hidden SSID and Proxy settings > > Excerpts from Jerry Vonau's message of Mon Mar 07 09:51:30 +0100 2011: > > > Yes, think that would be a good idea, with this method connections.cfg > > can be empty. Perhaps network.py can just use/create the needed file > > for /etc/NetworkManager/system-connections/ or make that an option > > available in control panel. > > Using system instead of user settings in Sugar has been planned for some time > now [1], but I didn't get around to working on it. > > The first beta of NetworkManager 0.9 has been released [2] a few days ago. As > of that version, the distinction between system and user settings is gone for > good [3], so it makes more sense to migrate [4] to > 0.9 right away instead of moving to system settings first. > > As part of the 0.9 migration I'd like us to show configured connections in > addition to the currently visible access points. This should help users > working in > less-than-perfect environments (disabled beacons, VPNs, access points on > different sites that need different credentials but have the same SSID, etc.). > > We should also try to move our Ad Hoc auto-connect logic into > NetworkManager. Not only would it make our code simpler and easier to debug, > but non-Sugar users would benefit from the automatic "under the tree" > networking as well. Even Mac OS X seems to have something similar to > automatic Ad Hoc networking + link-local collaboration now (called AirDrop > [5]). Have you thought about the resources you need to complete this and when it might land? This is a critical task which is asked for by every deployment. david > Sascha > > [1] https://bugs.sugarlabs.org/ticket/1884 > [2] http://mail.gnome.org/archives/networkmanager-list/2011- > March/msg00020.html > [3] http://live.gnome.org/NetworkManager/ApiSimplify > [4] http://projects.gnome.org/NetworkManager/developers/migrating-to-09/ > [5] http://www.apple.com/macosx/lion/ > -- > http://sascha.silbe.org/ > http://www.infra-silbe.de/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [Server-devel] Hidden SSID and Proxy settings
On Mon, 2011-03-07 at 18:42 +1100, James Cameron wrote: > On Sun, Mar 06, 2011 at 11:29:09PM -0600, Jerry Vonau wrote: > > On Fri, 2011-03-04 at 15:34 +1100, James Cameron wrote: > > > On Thu, Mar 03, 2011 at 09:55:26PM -0600, Jerry Vonau wrote: > > > > On Thu, 2011-03-03 at 14:47 +1100, James Cameron wrote: > > > > > On Wed, Mar 02, 2011 at 10:38:07PM -0500, Dr. Gerald Ardito wrote: > > > > > > Both methods work within a session. > > > > > > In GNOME, I can connect to the hidden network. And, if I > > > > > > change back to Sugar, the connection is intact. > > > > > > > > > > (Restarting NetworkManager at this point causes the connection > > > > > to drop and not be re-established.) > > > > > > > > > > The ONBOOT setting doesn't appear to work either. > > > > > > > > On an un-hidden network it does, or at least loaded as the UI > > > > becomes usable. > > > > > > Why should it wait for the UI to become usable? That sounds like it > > > is waiting for the settings service to register with D-Bus. > > > Therefore it is not using ifcfg as such. > > > > That is part of the problem, ifcfg-rh plugin, nm-applet knows how to > > use the info while sugar does not. What is needed it to use NM keyfile > > plugin so there is a common method of storing system level info > > between sugar and gnome. Here is what I did, get into gnome, stop the > > NM service, edit /etc/NetworkManager/nm-system-settings.conf using > > keyfile in place of ifcfg-rh, restart NM. Now go configure your hidden > > network ticking both of the boxes. That will create system level > > config file in /etc/NetworkManager/system-connections/ that will > > be used by NM upon boot. Reboot back into gnome, the settings should > > stick bringing the network up and not ask for a password. Switch over > > sugar, the icon for the AP should be connected. Reboot, while in > > sugar, when sugar returns you should be auto connected to your hidden > > network. > > Thanks for the explanation. I was not aware of the ifcfg-rh and keyfile > plugins. I've tested this and written it up in a procedure: > > http://wiki.laptop.org/go/Wifi_Connectivity#10.1.3_and_11.2.0 > > Also linked from http://wiki.laptop.org/go/Hidden > > (I like how "The connection will remain active over restart of Sugar or > GNOME." Much more to my liking for diagnosis and testing. Previously I > had simply turned off NetworkManager and manually configured.) > > Perhaps you might propose a patch to fix this in olpc-os-builder for the > next release? The intent being to reduce the steps that have to be done > by Gerald and others. > The only thing that needs fixing for NM would be changing the nm-system-settings.conf file from ifcfg-rh to keyfile. Is NM still forked for F14?(haven't checked) If is is then I don't think os-builder is the issue in this one, but I'll do a quick sed fix for now. > > > I agree with Gerald, the issue is now one of persistence. > > > > Think we should ditch the ifcfg-rh plug-in in favor of using NM native > > system support. This would mean tweeking network.py to write out the > > needed NM config file. > > I don't understand, sorry. Perhaps sugar-devel@ should be involved. > Yes, think that would be a good idea, with this method connections.cfg can be empty. Perhaps network.py can just use/create the needed file for /etc/NetworkManager/system-connections/ or make that an option available in control panel. Jerry ___ Server-devel mailing list server-de...@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
