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Re: kern/48792 (hdaudio(4) doesn't support mmap)

The following reply was made to PR kern/48792; it has been noted by GNATS.

From: David Holland <>
Subject: Re: kern/48792 (hdaudio(4) doesn't support mmap)
Date: Mon, 1 Sep 2014 03:52:31 +0000

 On Mon, Sep 01, 2014 at 03:50:35AM +0000, wrote:
  > State-Changed-From-To: feedback->open
  > State-Changed-By:
  > State-Changed-When: Mon, 01 Sep 2014 03:50:35 +0000
  > State-Changed-Why:
  > tyrquake now starts, but the sound doesn't work - generates static in the
  > rhythm of a horse galloping.
 My guess is that the application and the driver are disagreeing on the
 format of the mmap buffers; it doesn't sound like signed vs. unsigned
 but it could be 8-bit vs. 16-bit.
 David A. Holland

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