Re: [LAU] Cracking sound via USB (ALSA urb.c:480: frame 5 active: -18)

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To: <jeremy@...>
Cc: <linux-audio-user@...>
Date: Thursday, May 26, 2011 - 9:14 am

On Wed, May 25, 2011 at 08:55:48AM +0200, Jeremy Jongepier wrote:

Wait, what?

I've been doing way too much reading of USB specs (and the hub.c, message.c, and musb driver source code) for work lately, and even though I'm definitely suffering from early onset of Alzheimer's, I distinctly remember reading that Isochronous and Bulk endpoints were only allowed at High Speed (480Mbps).

At Full speed (12Mbps), IIRC, you get Interrupt and Control endpoints, and that's pretty much it.

-ken
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Messages in current thread:
Re: [LAU] Cracking sound via USB (ALSA urb.c:480: frame 5 ac..., Aurélien Leblond, (Tue May 24, 11:36 pm)
Re: [LAU] Cracking sound via USB (ALSA urb.c:480: frame 5 ac..., Ken Restivo, (Thu May 26, 9:14 am)