Hi, I have tried the two patches singly and together . But it did not resolve the usb audio problem.
Shiju On Wed, 9 Mar 2005 09:12:57 -0800, David Brownell <[EMAIL PROTECTED]> wrote: > On Wednesday 09 March 2005 1:17 am, Shiju Mathew wrote: > > Hi, > > When I connect the usb audio(CM108) to a USB 2.0 hub which inturn is > > connected to the system root hub, the audio quality is very bad. I > > hear a audible buzz . But if I remove the ehci-hcd then the audo > > quality is perfectly fine. I read that the high speed isochronous > > transfers through USB 2.0 hubs is not robust yet on linux. Is this > > the same issue that I am experiencing. I have tested with 2.6.11 > > kernel with no success. Could anyone help me to resolve the problem. > > http://marc.theaimsgroup.com/?l=linux-usb-devel&m=111022243725297&w=2 > > has two patches to try. > > > Endpoint Descriptor: > > bLength 9 > > bDescriptorType 5 > > bEndpointAddress 0x01 EP 1 OUT > > bmAttributes 9 > > Transfer Type Isochronous > > Synch Type Adaptive > > Usage Type Data > > wMaxPacketSize 0x00c8 bytes 200 once > > bInterval 1 > > bRefresh 0 > > bSynchAddress 0 > > AudioControl Endpoint Descriptor: > > bLength 7 > > bDescriptorType 37 > > bDescriptorSubtype 1 (EP_GENERAL) > > bmAttributes 0x01 > > Sampling Frequency > > bLockDelayUnits 1 Milliseconds > > wLockDelay 1 Milliseconds > > > -- Regards, Shiju ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
