Re: Using a wifi dongle on an XO-1(.5) -- another dongle
On Thu, May 01, 2014 at 03:56:32PM -0400, Nathan C. Riddle wrote: Found another Ralink device that works: RT5370. [...] Now, is there a device based on Ralink chips to replace the internal Libertas wireless module ? :) No, certainly not. libertas kernel driver is used for the Marvell 88W8388 and 88W8686 based wireless modules. The XO-1 module, based on the 88W8388 chip, is not removable, and no other module is compatible. The XO-1.5, XO-1.75, and XO-4 modules, the 88W8686, are removable, but the only source of replacements is OLPC spare parts, and minimum order quantities make this impractical for you. And, if I'm reading the schematics right, there's also two voltage variants, so the modules for XO-1.5 (3.3V) can't be swapped with the modules for XO-1.75 and XO-4 (1.8V). The XO-1.5, XO-1.75, and XO-4 main board wireless socket is a Mini-PCIe connector, but the electrical interface is custom, and carries SDIO, wireless indicator LED, and wakeup signals, so any new module must be custom made for the hardware. You might break open a USB wireless adapter, attach to the USB connecting points at a socket, and glue it into the laptop in the space vacated by the original module. -- James Cameron http://quozl.linux.org.au/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Using a wifi dongle on an XO-1(.5) -- another dongle
On May 1, 2014, at 6:32 PM, James Cameron wrote: On Thu, May 01, 2014 at 03:56:32PM -0400, Nathan C. Riddle wrote: Found another Ralink device that works: RT5370. [...] Now, is there a device based on Ralink chips to replace the internal Libertas wireless module ? :) No, certainly not. ... And, if I'm reading the schematics right, there's also two voltage variants, so the modules for XO-1.5 (3.3V) can't be swapped with the modules for XO-1.75 and XO-4 (1.8V). Only cards built before we added the ESD protection (very early in production) are limited to operation at +3.3V. Most of the cards used in XO-1.5 operate at either +3.3V or +1.8V, and are identical to the 88W8686 modules were used for XO-1.75 and XO-4. The XO-1.5, XO-1.75, and XO-4 main board wireless socket is a Mini-PCIe connector, but the electrical interface is custom, and carries SDIO, wireless indicator LED, and wakeup signals, so any new module must be custom made for the hardware. The miniPCIe form factor is frequently used for USB-based wireless cards as well, and XO laptops do provide USB signals at the appropriate pins although the shipped wireless card doesn't use it. Power, ground, and some auxiliary signals use standard pins. But we did reuse the actual PCIe signal pins to provide the SD interface so you might need to cut some wires to avoid conflict. The pinout is available at: http://wiki.laptop.org/images/d/d9/XO_4_Pinouts.pdf Cheers, wad ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Using a wifi dongle on an XO-1(.5) -- another dongle
On Thu, May 01, 2014 at 07:37:10PM -0400, John Watlington wrote: On May 1, 2014, at 6:32 PM, James Cameron wrote: On Thu, May 01, 2014 at 03:56:32PM -0400, Nathan C. Riddle wrote: Found another Ralink device that works: RT5370. [...] Now, is there a device based on Ralink chips to replace the internal Libertas wireless module ? :) No, certainly not. ... And, if I'm reading the schematics right, there's also two voltage variants, so the modules for XO-1.5 (3.3V) can't be swapped with the modules for XO-1.75 and XO-4 (1.8V). Only cards built before we added the ESD protection (very early in production) are limited to operation at +3.3V. Most of the cards used in XO-1.5 operate at either +3.3V or +1.8V, and are identical to the 88W8686 modules were used for XO-1.75 and XO-4. Thanks. The XO-1.5, XO-1.75, and XO-4 main board wireless socket is a Mini-PCIe connector, but the electrical interface is custom, and carries SDIO, wireless indicator LED, and wakeup signals, so any new module must be custom made for the hardware. The miniPCIe form factor is frequently used for USB-based wireless cards as well, and XO laptops do provide USB signals at the appropriate pins although the shipped wireless card doesn't use it. I couldn't prove they were connected, on the XO-1.5 schematic (Rev M), as the signal name didn't appear elsewhere. They are tied to the USB hub on XO-1.75 and XO-4. Power, ground, and some auxiliary signals use standard pins. But we did reuse the actual PCIe signal pins to provide the SD interface so you might need to cut some wires to avoid conflict. The pinout is available at: http://wiki.laptop.org/images/d/d9/XO_4_Pinouts.pdf Thanks. Are you aware of any replacement USB cards that have been made to work? -- James Cameron http://quozl.linux.org.au/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Using a wifi dongle on an XO-1(.5) -- another dongle
On May 1, 2014, at 9:26 PM, James Cameron wrote: The miniPCIe form factor is frequently used for USB-based wireless cards as well, and XO laptops do provide USB signals at the appropriate pins although the shipped wireless card doesn't use it. I couldn't prove they were connected, on the XO-1.5 schematic (Rev M), as the signal name didn't appear elsewhere. On XO-1.5 it is connected to the VX855 USB port 5 (page 15). They are tied to the USB hub on XO-1.75 and XO-4. ... Are you aware of any replacement USB cards that have been made to work? Nope. wad ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Using a wifi dongle on an XO-1(.5) -- another dongle
On Thu, May 01, 2014 at 09:39:36PM -0400, John Watlington wrote: On May 1, 2014, at 9:26 PM, James Cameron wrote: I couldn't prove they were connected, on the XO-1.5 schematic (Rev M), as the signal name didn't appear elsewhere. On XO-1.5 it is connected to the VX855 USB port 5 (page 15). Thanks. My PDF reader didn't Find it, turns out to be WspaceL_USBP5 on page 15, and WL_USBP5 on page 24. -- James Cameron http://quozl.linux.org.au/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [Server-devel] server and IAB
The fact that the screen comes up on a client XO suggests that the server is configured correctly. Build 852 is a very old build. I looked in sugarlabs.org activities browse, to see if there were any newer Browse versions that work with sugar .84. It does not look to be the case. I suggest loading 13.2.0 on one XO, and see if that works. see http://wiki.laptop.org/go/Release_notes/13.2.0 Or in Haiti, we solidified around 12.1.0, because the move to gtk version 3 in 13.2.0 seemed to add overhead, and slow everything down (see http://wiki.laptop.org/go/HaitiOS) On Thu, May 1, 2014 at 5:31 PM, Martiny JeanBaptiste martiny.jeanbapti...@dc.edu wrote: Hi Adam, We cannot play any of the Khan Academy video of the IIAB from an XO. The screen comes up but it never plays. The videos play without any issues on the schoolserver. Does the XO need a special plugin installed. Specs on the XO being used Build: 852 Sugar: 0.84.16. Thank you, Martiny Jean Baptiste IT Support Dominican College of Blauvelt 470 Western Highway Orangeburg, NY 10962 Office: (845) 848-4050 Mobile: (845) 222-4550 Email: martiny.jeanbapti...@dc.edu *From:* Joanne Clemente *Sent:* Thursday, May 01, 2014 2:24 PM *To:* Martiny JeanBaptiste *Subject:* FW: server and IAB Joanne Clemente, Ed. D. Director of Online Learning Center for Adult Student Education (CASE): Faculty Trainer, Blackboard/Moodle Administrator, MapWorks Dominican College 470 Western Highway Orangeburg, NY 10962 845.848.4017 [image: still-logo-smaller] *It is better to be good than to be right.* *From:* hotmail_e5f197d31ca4c...@live.com [ mailto:hotmail_e5f197d31ca4c...@live.comhotmail_e5f197d31ca4c...@live.com] *On Behalf Of *Tim Moody *Sent:* Thursday, May 01, 2014 1:47 AM *To:* Joanne Clemente; Server-Devel@Lists. Org *Subject:* RE: server and IAB It sounds like the server is working, but we need more information about how the xos connect and are configured. First, from a browser on the xo does http://schoolserver.lan return the portal screen? If not, I suggest that Martiny have a look at https://github.com/XSCE/xsce/blob/master/docs/INSTALL.rst to understand what sorts of networking are supported. Also, we need to know what version of the OS is on the xos. -- Date: Wed, 30 Apr 2014 19:31:16 -0400 Subject: Fwd: server and IAB From: h...@unleashkids.org To: joanne.cleme...@dc.edu CC: curtathomp...@gmail.com; t...@timmoody.com; georgejh...@gmail.com Joanne, I am offline in Nepal and many of us are travelling this week. Plz have Martiny write the exact problem/configuration to public mailing list server-devel@lists.laptop.org Thanks! -- Forwarded message -- From: Joanne Clemente joanne.cleme...@dc.edu Date: May 1, 2014 3:04 AM Subject: server and IAB To: h...@laptop.org h...@laptop.org Hi, Adam We were finally able to get the IAB to work with the schoolserver. We can view the videos on the server but cannot see anything from the XO1 or the XO1.5 from either the browser or the gnome side. Is there something we need to install on them? Thanks, Joanne Joanne Clemente, Ed. D. Director of Online Learning Center for Adult Student Education (CASE): Faculty Trainer, Blackboard/Moodle Administrator, MapWorks Dominican College 470 Western Highway Orangeburg, NY 10962 845.848.4017 [image: still-logo-smaller] *It is better to be good than to be right.* ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
