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wireless USB adapters recommendations?

DISCUSSION Tomasz Chmielewski 3 participants 7 messages Aug 2, 2008

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#0 lore raw

I'm looking for a USB wireless adapter which is well supported under Linux.

Requirements:

- WPA2
- should support ad-hoc and access point modes
- should work under mipsel (I had once a prism54 mini-PCI card which didn't work under mipsel)

It would be also nice to to get the hardware from a producer which cooperates with Linux community.

Do you guys have any recommendations?

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Tomasz Chmielewski
http://wpkg.org
#1 lore raw
Quoted 10 lines · Tomasz Chmielewski

I'm looking for a USB wireless adapter which is well supported under Linux.

Requirements:

- WPA2
- should support ad-hoc and access point modes - should work under mipsel (I had once a prism54 mini-PCI card which didn't work under mipsel)

Quoted 4 lines

It would be also nice to to get the hardware from a producer which cooperates with Linux community.

Do you guys have any recommendations?

Your requirements are mutually exclusive at the moment. Here is what the FSF says on the matter:
http://www.fsf.org/resources/hw/net/wireless/cards.html
Access-point mode is now dependent upon nl80211, which isn't finished yet.

#2 lore raw
Quoted 7 lines · Daniel Gimpelevich
Quoted 7 lines

I'm looking for a USB wireless adapter which is well supported under Linux.

- WPA2
- should support ad-hoc and access point modes - should work under mipsel (I had once a prism54 mini-PCI card which didn't work under mipsel)

Didn't work under mipsel seems fixable, should be a driver issue.

Quoted 3 lines

Your requirements are mutually exclusive at the moment. Here is what the FSF says on the matter:
http://www.fsf.org/resources/hw/net/wireless/cards.html

I wouldn't be too sure the FSF is a good source of information regarding wireless on Linux (or of anything about Linux for that matter). And the list is, indeed, rather incomplete and gives a very skewed picture.

On the other hand, I don't think there are any USB devices that support AP mode.

Quoted 1 line

Access-point mode is now dependent upon nl80211, which isn't finished yet.

Patience. It will be soon.

johannes

#3 lore raw
Quoted 3 lines · Johannes Berg

I wouldn't be too sure the FSF is a good source of information regarding wireless on Linux (or of anything about Linux for that matter). And the list is, indeed, rather incomplete and gives a very skewed picture.

I wasn't saying otherwise; I clearly qualified it as what *they* say.

Quoted 2 lines

On the other hand, I don't think there are any USB devices that support AP mode.

With nl80211 they will, at least on rt73usb and rtl8187.

#4 lore raw
In reply to Johannes Berg
Quoted 11 lines · Johannes Berg
Quoted 7 lines · Daniel Gimpelevich
Quoted 7 lines

I'm looking for a USB wireless adapter which is well supported under Linux.

- WPA2
- should support ad-hoc and access point modes - should work under mipsel (I had once a prism54 mini-PCI card which didn't work under mipsel)

Didn't work under mipsel seems fixable, should be a driver issue.

Yeah, I tested it with 2.6.19 some time ago.

Maybe the things are better now with the current kernel - I'll check it next week - and if it works, I won't need a USB device ;)

Signature · 2 lines
Tomasz Chmielewski
http://wpkg.org
#5 lore raw
In reply to Daniel Gimpelevich
Quoted 12 lines · Daniel Gimpelevich
Quoted 10 lines · Tomasz Chmielewski

I'm looking for a USB wireless adapter which is well supported under Linux.

Requirements:

- WPA2
- should support ad-hoc and access point modes - should work under mipsel (I had once a prism54 mini-PCI card which didn't work under mipsel)

Quoted 6 lines
Quoted 4 lines

It would be also nice to to get the hardware from a producer which cooperates with Linux community.

Do you guys have any recommendations?

Your requirements are mutually exclusive at the moment.

Obviously, it doesn't have to support both ad-hoc and access point modes at the same time if that's what you mean ;)

Quoted 2 lines

Here is what the FSF says on the matter:
http://www.fsf.org/resources/hw/net/wireless/cards.html

According to that page, there are only two supported USB adapters... at least when you search for the "USB" string.

Quoted 1 line

Access-point mode is now dependent upon nl80211, which isn't finished yet.

So, there is no wireless USB adapter working with Linux supports access point mode now, because some parts of nl80211 are not ready yet?

I see nl80211 is in vanilla kernel now; what features still lack to provide access point functionality (to wireless USB adapters)? Any time frames (2.6.28? later?)?

Signature · 2 lines
Tomasz Chmielewski
http://wpkg.org
#6 lore raw
Quoted 6 lines · Tomasz Chmielewski

So, there is no wireless USB adapter working with Linux supports access point mode now, because some parts of nl80211 are not ready yet?

I see nl80211 is in vanilla kernel now; what features still lack to provide access point functionality (to wireless USB adapters)? Any time frames (2.6.28? later?)?

I'd expect .28, but cannot say for sure. It actually works right now, but has some non-standards-compliant behaviour wrt. basic rates and slot/rts/cts configuration, which is why you need a small patch to enable it.

johannes