From 2eb65d67afbf9364b525b657f1475d1a2cbc27de Mon Sep 17 00:00:00 2001 From: Takashi Sakamoto Date: Thu, 31 Dec 2015 13:58:14 +0900 Subject: [PATCH 23/23] 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 Signed-off-by: Takashi Iwai --- sound/firewire/dice/dice-transaction.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/firewire/dice/dice-transaction.c b/sound/firewire/dice/dice-transaction.c index 55c1fbf31626..a4ff4e0bc0af 100644 --- a/sound/firewire/dice/dice-transaction.c +++ b/sound/firewire/dice/dice-transaction.c @@ -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) -- 2.4.10