linux-kernel - [PATCH v4 16/32] sound: usb: pcm: Export fixed rate check USB SND API

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Message-ID: <20230725023416.11205-17-quic_wcheng@quicinc.com>
Date:   Mon, 24 Jul 2023 19:34:00 -0700
From:   Wesley Cheng <quic_wcheng@...cinc.com>
To:     <agross@...nel.org>, <andersson@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <catalin.marinas@....com>, <will@...nel.org>,
        <mathias.nyman@...el.com>, <gregkh@...uxfoundation.org>,
        <lgirdwood@...il.com>, <broonie@...nel.org>, <perex@...ex.cz>,
        <tiwai@...e.com>, <srinivas.kandagatla@...aro.org>,
        <bgoswami@...cinc.com>, <Thinh.Nguyen@...opsys.com>
CC:     <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-usb@...r.kernel.org>, <alsa-devel@...a-project.org>,
        <quic_jackp@...cinc.com>, <pierre-louis.bossart@...ux.intel.com>,
        <oneukum@...e.com>, <albertccwang@...gle.com>,
        <o-takashi@...amocchi.jp>, Wesley Cheng <quic_wcheng@...cinc.com>
Subject: [PATCH v4 16/32] sound: usb: pcm: Export fixed rate check USB SND API

Some modules will handle calling snd_usb_endpoint_open() instead of the USB
SND framework.  The USB SND endpoint open function added a new argument to
determine if the connect USB device can support multiple sampling rates.

Signed-off-by: Wesley Cheng <quic_wcheng@...cinc.com>
---
 sound/usb/pcm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index b6fb6d84d9eb..955c6fea3bfa 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -186,6 +186,7 @@ bool snd_usb_pcm_has_fixed_rate(struct snd_usb_substream *subs)
 	}
 	return true;
 }
+EXPORT_SYMBOL_GPL(snd_usb_pcm_has_fixed_rate);
 
 static int init_pitch_v1(struct snd_usb_audio *chip, int ep)
 {