Date: Thu, 28 Jun 2007 13:01:31 +0200 From: Alexander Leidinger <Alexander@Leidinger.net> To: Hans Petter Selasky <hselasky@c2i.net> Cc: freebsd-multimedia@freebsd.org, "Robin P. Blanchard" <robin.blanchard@georgiacenter.uga.edu> Subject: Re: RELENG_6 + usb audio ? Message-ID: <20070628130131.hinbxfi78k080ck8@webmail.leidinger.net> In-Reply-To: <200706281244.28523.hselasky@c2i.net> References: <7FDFD29DD240104598AADEAF34F2730F94F1@ex1.gc.nat> <200706271823.08875.hselasky@c2i.net> <20070628114059.tfxparsi04gc80cc@webmail.leidinger.net> <200706281244.28523.hselasky@c2i.net>
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Quoting Hans Petter Selasky <hselasky@c2i.net> (from Thu, 28 Jun 2007 12:44:28 +0200): > On Thursday 28 June 2007 11:40, Alexander Leidinger wrote: >> Quoting Hans Petter Selasky <hselasky@c2i.net> (from Wed, 27 Jun 2007 >> >> 18:23:08 +0200): >> > Hi, >> > >> > USB Audio works fine with my new USB stack, also called HPS USB stack. >> > There are some problems with the official USB stack regarding isochronous >> > transfers. >> >> Can you please be more specific? > > Yes, last time I checked, the start position where the isochronous transfers > are inserted, was not updated properly when there was data underrun. Is this a problem in uaudio or in the USB code? If it is the former, can you please point out the code in question in a way that someone without knowledge of the USB system is able to fix this? If it is the later, would you please tell Warner about it in a way that he can investigate this (I'm sure you can tell if the fix is a nearly-one-liner and where it needs to be done). We are approaching the release of 7.0 and it would be nice if easy to fix bugs which are known are fixed until then. > Secondly, full-duplex was not working with OHCI hardware, right? AFAIK: yes. This may or may not an issue in this case. Bye, Alexander. -- Behind every great man, there is a woman -- urging him on. -- Harry Mudd, "I, Mudd", stardate 4513.3 http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID = B0063FE7 http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID = 72077137
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