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ALSA: dice: expand timeout to wait for Dice notification 

Some users have reported that their Dice based models generate ETIMEDOUT
when starting PCM playback. It means that current timeout (=100msec) is
not enough for their models to transfer notifications.

This commit expands the timeout up to 2 sec. As a result, in a worst case,
any operations to start AMDTP streams takes 2 sec or more. Then, in
userspace, snd_pcm_hw_params(), snd_pcm_prepare(), snd_pcm_recover(),
snd_rawmidi_open(), snd_seq_connect_from() and snd_seq_connect_to() may
take the time.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
steinar/wifi_calib_4_9_kernel
Takashi Sakamoto 2015-12-31 13:58:14 +09:00 committed by Takashi Iwai
parent a2875a92b8
commit 2eb65d67af
1 changed files with 1 additions and 1 deletions
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2
sound/firewire/dice/dice-transaction.c
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@ -9,7 +9,7 @@
#include "dice.h"
#define NOTIFICATION_TIMEOUT_MS 100
#define NOTIFICATION_TIMEOUT_MS (2 * MSEC_PER_SEC)
static u64 get_subaddr(struct snd_dice *dice, enum snd_dice_addr_type type,
u64 offset)