From: Takashi Iwai Date: Thu, 7 Apr 2022 21:27:40 +0000 (+0200) Subject: ALSA: usb-audio: Increase max buffer size X-Git-Tag: v5.18-rc3~26^2~45 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=fee2ec8cceb33b8886bc5894fb07e0b2e34148af;p=users%2Fdwmw2%2Flinux.git ALSA: usb-audio: Increase max buffer size The current limit of max buffer size 1MB seems too small for modern devices with lots of channels and high sample rates. Let's make bigger, 4MB. Reviewed-by: Jaroslav Kysela Link: https://lore.kernel.org/r/20220407212740.17920-1-tiwai@suse.de Signed-off-by: Takashi Iwai --- diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 6a460225f2e38..37ee6df8b15a7 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -659,7 +659,7 @@ static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream) #define hwc_debug(fmt, args...) do { } while(0) #endif -#define MAX_BUFFER_BYTES (1024 * 1024) +#define MAX_BUFFER_BYTES (4 * 1024 * 1024) #define MAX_PERIOD_BYTES (512 * 1024) static const struct snd_pcm_hardware snd_usb_hardware =