From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Luca Weiss <luca.weiss@fairphone.com>,
Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Felipe Balbi <balbi@kernel.org>,
Srinivas Kandagatla <srini@kernel.org>,
Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>, Jaroslav Kysela <perex@perex.cz>,
Takashi Iwai <tiwai@suse.com>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Wesley Cheng <quic_wcheng@quicinc.com>,
Stephan Gerhold <stephan.gerhold@linaro.org>
Cc: ~postmarketos/upstreaming@lists.sr.ht,
phone-devel@vger.kernel.org, linux-usb@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
linux-arm-msm@vger.kernel.org, linux-sound@vger.kernel.org
Subject: Re: [PATCH 6/6] arm64: dts: qcom: sm7225-fairphone-fp4: Enable USB audio offload support
Date: Mon, 28 Apr 2025 23:20:53 +0200 [thread overview]
Message-ID: <c2b490b5-9e8d-4da0-84c2-8c68d78920ca@oss.qualcomm.com> (raw)
In-Reply-To: <D9I3OWQF8T3Y.1Q5U9E2RI5YZX@fairphone.com>
On 4/28/25 9:41 AM, Luca Weiss wrote:
> On Fri Apr 25, 2025 at 11:06 PM CEST, Konrad Dybcio wrote:
>> On 4/25/25 12:44 PM, Luca Weiss wrote:
>>> Enable USB audio offloading which allows to play audio via a USB-C
>>> headset with lower power consumption and enabling some other features.
>>>
>>> This can be used like the following:
>>>
>>> $ amixer -c0 cset name='USB_RX Audio Mixer MultiMedia1' On
>>> $ aplay --device=plughw:0,0 test.wav
>>>
>>> Compared to regular playback to the USB sound card no interrupts should
>>> appear on the xhci-hcd interrupts during playback, instead the ADSP will
>>> be handling the playback.
>>
>> "should" isn't very optimistic - I assume this works for you? >
>
> Yes it does!
>
> With 'should' I meant to describe the expected behavior from using this
> since most people are probably not familiar with how this works.
ah, ok!
Konrad
next prev parent reply other threads:[~2025-04-28 21:20 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-25 10:44 [PATCH 0/6] Enable USB audio offloading on Fairphone 4 smartphone Luca Weiss
2025-04-25 10:44 ` [PATCH 1/6] dt-bindings: usb: dwc3: Document usb-soc-be property Luca Weiss
2025-04-25 21:39 ` Wesley Cheng
2025-04-28 7:34 ` Luca Weiss
2025-04-25 10:44 ` [PATCH 2/6] ASoC: dt-bindings: qcom,q6afe: Document q6usb subnode Luca Weiss
2025-04-25 10:44 ` [PATCH 3/6] ASoC: dt-bindings: qcom,sm8250: Add Fairphone 4 sound card Luca Weiss
2025-04-28 8:31 ` Krzysztof Kozlowski
2025-04-25 10:44 ` [PATCH 4/6] ASoC: qcom: sm8250: Add Fairphone 4 soundcard compatible Luca Weiss
2025-04-25 19:02 ` Dmitry Baryshkov
2025-04-25 10:44 ` [PATCH 5/6] arm64: dts: qcom: sm6350: Add q6usbdai node Luca Weiss
2025-04-25 19:03 ` Dmitry Baryshkov
2025-04-25 10:44 ` [PATCH 6/6] arm64: dts: qcom: sm7225-fairphone-fp4: Enable USB audio offload support Luca Weiss
2025-04-25 19:04 ` Dmitry Baryshkov
2025-04-25 21:06 ` Konrad Dybcio
2025-04-28 7:41 ` Luca Weiss
2025-04-28 21:20 ` Konrad Dybcio [this message]
2025-04-28 21:43 ` Konrad Dybcio
2025-04-29 8:55 ` Luca Weiss
2025-04-29 9:00 ` Konrad Dybcio
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