Re: Bluetooth Telephony & Mac OS X
Re: Bluetooth Telephony & Mac OS X
- Subject: Re: Bluetooth Telephony & Mac OS X
- From: Michael Larson <email@hidden>
- Date: Thu, 24 Apr 2003 09:15:39 -0700
Unfortunately we cannot comment on future releases at Apple, so I
cannot say whether we are or are not working on SCO.
What I can tell you is what is missing from the current implementation.
Currently the Apple HCI controller driver does not open any of the SCO
pipes to the USB device, so this is the major missing piece.
Additionally, there is a hardware question to answer before you know if
support will be possible with a given dongle. Some Bluetooth silicon
will support SCO with the audio being piped across some external HW
codecs and ports, which are not available on the USB bus, where others
will provide access to incoming and outgoing audio data over the USB
interface.
So what is needed from the Bluetooth perspective is the addition of
code to open and read/write the isochronous USB pipes on the Bluetooth
dongle married with a USB dongle which can support the audio data piped
over the USB interface. On top of the Bluetooth pieces that are
missing is the code needed to pipe data into and out of the Mac OS X
audio system. I am not very familiar with the audio system, and how to
write drivers in that world, however that information can be found at:
http://developer.apple.com/techpubs/macosx/Darwin/IOKit/DeviceDrivers/
Audio/WritingAudioDrivers/index.html
-larson
On Thursday, April 24, 2003, at 07:36 AM, Michael A. Crawford wrote:
Is anyone currently working on adding these missing pieces (third
party or Apple)? What underlying plumbing is missing for SCO? Is
this missing plumbing hardware, software, or both? If all the
hardware is there and no-one is about to release the missing software,
maybe I can get to work on it. I've implemented protocols before,
from OSI layer 2 on up.
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