[maemo-developers] Re: 802.11g Ad-Hoc Link?
I don't know if y'all consider self-replies kosher, but... On Thursday 06 July 2006 15:51, Andrew Barr wrote: > It occurred to me that the fastest way to transfer data to the 770 is over > an ad-hoc 54Mbps link. However, it looks to me like the WLAN driver is > going into 802.11b (11 Mbps) mode when I set up an ad-hoc network. I did a quick Google search and a little known fact is that the 802.11 spec requires only an 11Mbps max rate for both B-mode and G-mode. Products can exceed this of course, but many don't. This is, AFAIK, purely a driver issue for modern wireless hardware. I had an old Belkin wireless-G CardBus card laying around, and it uses the rt2500 driver, which appears to allow this behavior via a special setting (they call it "violating" the spec which doesn't seem right given what I've read). So is there any way I can go 54Mbps with the cx3110x driver on the 770 in ad-hoc mode? Is this possible with the islsm driver? (which I would like to get working for multiple reasons now) -- Andrew Barr | http://www.oakcourt.dyndns.org/~andrew/ "I think religion is bad and drugs are good. Why don't you find me a campaign manager?" -- Bill Maher, when asked if he would run for office ___ maemo-developers mailing list maemo-developers@maemo.org https://maemo.org/mailman/listinfo/maemo-developers
Re: [maemo-developers] Re: 802.11g Ad-Hoc Link?
>> It occurred to me that the fastest way to transfer data to the 770 is >> over an ad-hoc 54Mbps link. However, it looks to me like the WLAN >> driver is going into 802.11b (11 Mbps) mode... ... > This is, AFAIK, purely a driver issue for modern wireless hardware. This doesn't answer your question in the least, but it may be that the reason for this limitation in the 770 is that the hardware can't effectively move data around any faster than 11Mbps. I know I've never come close to reaching that speed in my network transfers (although in fairness most of my transfers are via SSH and either read or write from/to the MMC so I'm affected by bottlenecks that may not apply to you). Mike ___ maemo-developers mailing list maemo-developers@maemo.org https://maemo.org/mailman/listinfo/maemo-developers
Re: [maemo-developers] Re: 802.11g Ad-Hoc Link?
On Friday 07 July 2006 15:04, Michael P. Lococo wrote: > This doesn't answer your question in the least, but it may be that the > reason for this limitation in the 770 is that the hardware can't > effectively move data around any faster than 11Mbps. That may be true but there also the issue that the Wi-Fi spec says that Ad-Hoc doesn't have to exceed 11Mbps. > I know I've never > come close to reaching that speed in my network transfers (although in > fairness most of my transfers are via SSH and either read or write from/to > the MMC so I'm affected by bottlenecks that may not apply to you). Well, yes, that is what I was thinking of. Transferring MP3 files to the MMC card via USB 1.1 isn't particularly fun. :-/ -- Andrew Barr | http://www.oakcourt.dyndns.org/~andrew/ ___ maemo-developers mailing list maemo-developers@maemo.org https://maemo.org/mailman/listinfo/maemo-developers
Re: [maemo-developers] Re: 802.11g Ad-Hoc Link?
Am Freitag, 7. Juli 2006 21:04 schrieb Michael P. Lococo: > > This doesn't answer your question in the least, but it may be that the > reason for this limitation in the 770 is that the hardware can't > effectively move data around any faster than 11Mbps. That's certainly not the bottleneck. 1 MByte/sec are no problem at all for a 200MHz ARM. As long as there's no floating point arithmetics involved, the CPU is quite fast. Hans ___ maemo-developers mailing list maemo-developers@maemo.org https://maemo.org/mailman/listinfo/maemo-developers
Re: [maemo-developers] Re: 802.11g Ad-Hoc Link?
Just a question regarding ad-hoc connections:Does the 770 support ad-hoc mode directly? Or do you have to install the iwtools and then enable adhoc mode from xterm? I could see an adhoc network of mine with the 770, do I need to install wireless tools or was it something with my network... On 7/7/06, Hans J. Koch <[EMAIL PROTECTED]> wrote: Am Freitag, 7. Juli 2006 21:04 schrieb Michael P. Lococo:>> This doesn't answer your question in the least, but it may be that the> reason for this limitation in the 770 is that the hardware can't > effectively move data around any faster than 11Mbps.That's certainly not the bottleneck. 1 MByte/sec are no problem at all for a200MHz ARM. As long as there's no floating point arithmetics involved, the CPU is quite fast.Hans___maemo-developers mailing listmaemo-developers@maemo.org https://maemo.org/mailman/listinfo/maemo-developers ___ maemo-developers mailing list maemo-developers@maemo.org https://maemo.org/mailman/listinfo/maemo-developers
Re: [maemo-developers] Re: 802.11g Ad-Hoc Link?
On Monday 10 July 2006 14:44, Thanos Panousis wrote: > Just a question regarding ad-hoc connections: > > Does the 770 support ad-hoc mode directly? Yes. Including link-local IPv4 addresses. > Or do you have to install the > iwtools and then enable adhoc mode from xterm? No. > I could see an adhoc network > of mine with the 770, do I need to install wireless tools or was it > something with my network... You have to create the adhoc network profile on the 770 first. At least, that's been my experience. It doesn't appear to detect already-existing networks through scanning but can join them if you create a correct profile. -- Andrew Barr | http://www.oakcourt.dyndns.org/~andrew/ ___ maemo-developers mailing list maemo-developers@maemo.org https://maemo.org/mailman/listinfo/maemo-developers
Re: [maemo-developers] Re: 802.11g Ad-Hoc Link?
"Andrew Barr" <[EMAIL PROTECTED]> writes: > You have to create the adhoc network profile on the 770 first. At least, > that's been my experience. It doesn't appear to detect already-existing > networks through scanning but can join them if you create a correct profile. That sounds like a bug. If there's an existing Ad-Hoc network, 770 should find it and connect to it like with normal infrastructure networks. The 'W' icon in the connect dialog just should be a bit more lighter blue in Ad-Hoc networks. -- Kalle Valo ___ maemo-developers mailing list maemo-developers@maemo.org https://maemo.org/mailman/listinfo/maemo-developers
Re: [maemo-developers] Re: 802.11g Ad-Hoc Link?
On Tuesday 11 July 2006 02:54, Kalle Valo wrote: > That sounds like a bug. If there's an existing Ad-Hoc network, 770 > should find it and connect to it like with normal infrastructure > networks. The 'W' icon in the connect dialog just should be a bit more > lighter blue in Ad-Hoc networks. I wouldn't say there's a bug in the 770 software just yet. There could be a bug in NetworkManager, the ipw2200 driver, or something on the other end. I'm going to do more testing and find out, especially now that I've ditched NetworkManager on my laptop. -- Andrew Barr | http://www.oakcourt.dyndns.org/~andrew/ GPG: B6E3 19B7 C294 BF8B B26B 317C 86E3 3E67 AD9A E76A "Those who would trade liberty for security deserve neither." -- attributed to Benjamin Franklin ___ maemo-developers mailing list maemo-developers@maemo.org https://maemo.org/mailman/listinfo/maemo-developers
Re: [maemo-developers] Re: 802.11g Ad-Hoc Link?
Am Dienstag, den 11.07.2006, 15:37 -0400 schrieb Andrew Barr: > On Tuesday 11 July 2006 02:54, Kalle Valo wrote: > > That sounds like a bug. If there's an existing Ad-Hoc network, 770 > > should find it and connect to it like with normal infrastructure > > networks. The 'W' icon in the connect dialog just should be a bit more > > lighter blue in Ad-Hoc networks. > > I wouldn't say there's a bug in the 770 software just yet. There could be a > bug in NetworkManager, the ipw2200 driver, or something on the other end. I'm > going to do more testing and find out, especially now that I've ditched > NetworkManager on my laptop. I just tried a $ iwlist wlan0 scan and found the ESSID of the Ad-Hoc network the WLAN card of my laptop was in. When I scanned for it with a tap on blue globe this Ad-Hoc network is always there regardless if it's currently reachable or not. The 770 also does not connect to this Ad-Hoc network automatically if it is reachable. Greets, Jonek. ___ maemo-developers mailing list maemo-developers@maemo.org https://maemo.org/mailman/listinfo/maemo-developers
