1. my pcm_bluetooth plugins are installed in the right place of /usr/lib/alsa-lib. I copy the configure command line from README file.
2. by the way, as for version 3.19. (if 3.31 could work for me, it is not important)
snd_pcm_hw_params() give the return value from low level function call:
return pcm->fast_ops->prepare(pcm->fast_op_arg);
I think it will recursive reference to Bluez stack.
>-----Original Message-----
>From: bluez-devel-bounces@xxxxxxxxxxxxxxxxxxxxx
>[mailto:bluez-devel-bounces@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of Marcel
>Holtmann
>Sent: 2008年5月12日 21:48
>To: BlueZ development
>Cc: bluez-devel@xxxxxxxxxxxx
>Subject: Re: I can't use 3.31 release,but 3.19 release works
>on the same platform
>
>Hi Halley,
>
>> My Bluetooth earphone is Motorola HT820.
>>
>>
>>
>> 1. When I try to use bluez-utils 3.31 on my desktop (Ubuntu7.10),
>> there are some issues: (but there is no such issue when I use 3.19
>> version on this same platform). Should I update some other package
>> besides bluez-utils and bluez-libs?
>
>please make sure the right pcm_bluetooth plugin is loaded. It needs to
>be installed in /usr/lib/alsa-lib. If you installed it with a different
>prefix and it ends up in /usr/loca/lib/alsa-lib then it won't work. The
>audio service needs to be used with the matching plugin.
>
>> 2. When I use bluez-utils 3.19 version, application calls
>> snd_pcm_hw_params() sometimes will got return value "1". (The function
>> description says it will be 0 for success and negative number for
>> failure). The positive value makes me puzzled.
>
>This is a question for the ALSA guys. I really have no clue.
>
>> 3. Ubuntu hardy has included bluez-utils 3.26 version; but I found
>> there are many XRun errors when I use helix engine.
>
>The audio service has been improved a lot of 3.26 and thus it might
>simply miss a patch. However for me it is already too old to remember
>any details.
>
>Regards
>
>Marcel
>
>
>
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