Re: [BUGFIX][PATCH] change some parameters for tlg2300

[Huang Shijie <shijie8@gmail.com>]

Hi Mauro:
> This patch has side effect : the radio does not run well with this patch.
>   
I tested the patch carefully.
If I listen the radio with mplayer in the root account, the radio does
not run well ( a xrun occurs);
if I listen the radio with mplayer in the normal account (not root). the
radio runs well.

Do you have any advice ? Do you think this is a problem?

thanks.

> Best Regards
> Huang Shijie.
>
>   
>> The orgin parameters may cause a bug : The audio may lost in certain
>> situation (such as open the VLC at the first time).
>>
>> The origin parameters set a small stop_threshold for snd_pcm_runtime{}.
>> So a xrun occurs in some situation.
>>
>> Signed-off-by: Huang Shijie <shijie8@gmail.com>
>> ---
>>  drivers/media/video/tlg2300/pd-alsa.c |   10 ----------
>>  1 files changed, 0 insertions(+), 10 deletions(-)
>>
>> diff --git a/drivers/media/video/tlg2300/pd-alsa.c b/drivers/media/video/tlg2300/pd-alsa.c
>> index 6f42621..e9ad715 100644
>> --- a/drivers/media/video/tlg2300/pd-alsa.c
>> +++ b/drivers/media/video/tlg2300/pd-alsa.c
>> @@ -21,9 +21,6 @@
>>  static void complete_handler_audio(struct urb *urb);
>>  #define AUDIO_EP	(0x83)
>>  #define AUDIO_BUF_SIZE	(512)
>> -#define PERIOD_SIZE	(1024 * 8)
>> -#define PERIOD_MIN	(4)
>> -#define PERIOD_MAX 	PERIOD_MIN
>>  
>>  static struct snd_pcm_hardware snd_pd_hw_capture = {
>>  	.info = SNDRV_PCM_INFO_BLOCK_TRANSFER |
>> @@ -38,18 +35,11 @@ static struct snd_pcm_hardware snd_pd_hw_capture = {
>>  	.rate_max = 48000,
>>  	.channels_min = 2,
>>  	.channels_max = 2,
>> -	.buffer_bytes_max = PERIOD_SIZE * PERIOD_MIN,
>> -	.period_bytes_min = PERIOD_SIZE,
>> -	.period_bytes_max = PERIOD_SIZE,
>> -	.periods_min = PERIOD_MIN,
>> -	.periods_max = PERIOD_MAX,
>> -	/*
>>  	.buffer_bytes_max = 62720 * 8,
>>  	.period_bytes_min = 64,
>>  	.period_bytes_max = 12544,
>>  	.periods_min = 2,
>>  	.periods_max = 98
>> -	*/
>>  };
>>  
>>  static int snd_pd_capture_open(struct snd_pcm_substream *substream)
>>   
>>     
>