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maemo.org - Talk (https://talk.maemo.org/index.php)
-   OS2008 / Maemo 4 / Chinook - Diablo (https://talk.maemo.org/forumdisplay.php?f=29)
-   -   USB Audio (https://talk.maemo.org/showthread.php?t=16952)

fanoush 2008-04-30 10:14
Re: USB Audio
 
This still doesn't look right
Code:
[  318.296875] musb_g_ep0_irq 709: SETUP packet len 0 != 8 ?
[  318.296875] musb_stage0_irq 570: VBUS_ERROR in a_host (91, <VBusValid), retry #1, port1 00000503
[  318.867187] musb_stage0_irq 646: CONNECT (a_host) devctl 5d
Was the hub really powered (i.e. attached to 5V adapter)? Also just in case you may try to reboot after you have the vbus error before further experiments with powered hub. When I get back to home I'll dig out my usb audio adapters and post sample kernel log.

Cruelkix 2008-04-30 14:55
Re: USB Audio
 
I had it plugged into the wall with the adapter as well as the usb plugged into the n810. And the light was on on the hub. Are you saying I shouldn't be getting those VBUS_ERROR's?

It would realy suck if I needed at different usb hub ....... I'll try it with a flash drive tonight and see if I can get at any of the data through the hub.

lardman 2008-04-30 15:36
Re: USB Audio
 
How's about plugging the same setup into a desktop Linux box and looking at the output for comparison purposes?

Cruelkix 2008-04-30 15:40
Re: USB Audio
 
Thats a good suggestion and I have been thinking about doing it. Only problem is I dont have a linux desktop. I run the dreaded Vista 64 Ultimate. I've been thinking of throwing together a linux box tho. Perhaps I will do it tonight or tomorrow. I need to set one up to run homeautomation stuff anyway. I have so many computer components lying around it wouldn't be hard. I probably have like 2-3 decent computers in my house doing nothing, haha.

Should I just throw Ubuntu on it? Or should I grab something like a Debian package (isn't ubuntu based off debian?)

Again I'm a linux n00b so it my be more effort than its worth for me.

qwerty12 2008-04-30 15:42
Re: USB Audio
 
Quote:
Originally Posted by Cruelkix (Post 176391)
Should I just throw Ubuntu on it? Or should I grab something like a Debian package (isn't ubuntu based off debian?)
Distro's are up to you :)

I use Ubuntu personally, and yes Ubuntu is based of Debian. You cannot grab a debian package to install Debian :). You use them to install stuff in Debian/Ubuntu.

Cruelkix 2008-04-30 15:54
Re: USB Audio
 
Quote:
Originally Posted by qwerty12 (Post 176392)
Distro's are up to you :)

You cannot grab a debian package to install Debian :). You use them to install stuff in Debian/Ubuntu.
Yeah that was a poor choice of words. I was asking if you can install Debian? I didn't know if it was a base OS or not. Would it be better to install a basic debian OS considering thats what Maemo kinda sorta is or should I put Ubuntu on there and I'll have the same results?

Benson 2008-04-30 19:25
Re: USB Audio
 
The tablet doesn't care. Ubuntu is about as close to ITOS as Debian is.

I'd pick Debian over Ubuntu, personally, but not for IT-related reasons; I can't make a useful recommendation for you -- I prefer Slackware over either.

fanoush 2008-04-30 20:06
Re: USB Audio
 
Quote:
Originally Posted by Cruelkix (Post 176364)
Are you saying I shouldn't be getting those VBUS_ERROR's?
Yes. So far I've seen these errors only when tablet couldn't give enough power. Such device then didn't have enough juice to power itself on fully and communicate over USB. Powered hub fixed the problem. I've seen this with 2.5" hard drive in usb box, SDHC card reader and XBOX gamepad. Powered hub always fixed the problem, same hub with power disconnected had same problem.

When detected on linux PC check MaxPower parameter of your device in dmesg log. This tells how much power device needs.

lardman 2008-04-30 22:42
Re: USB Audio
 
You ought to be able to use one of those distro-on-a-CD jobs (what are they called? - liveCD?) just to do this one job, rather than having to build a new machine (though in the long term having a real Linux box will help you learn).

Cruelkix 2008-04-30 22:45
Re: USB Audio
 
Quote:
Originally Posted by lardman (Post 176534)
You ought to be able to use one of those distro-on-a-CD jobs (what are they called? - liveCD?) just to do this one job, rather than having to build a new machine (though in the long term having a real Linux box will help you learn).
Yeah, I thought about using a LiveCD as well. I have been meaning to set up a linux box for a while now. This is as good as an excuse as I will probably get! Good suggestion tho. If I run short on time I may give it a go.


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