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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b885b77806esm782777666b.56.2026.01.27.05.31.43 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 27 Jan 2026 05:31:45 -0800 (PST) Message-ID: Date: Tue, 27 Jan 2026 14:31:42 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 2/9] usb: misc: qcom_eud: add sysfs attribute for port selection To: Elson Serrao , Greg Kroah-Hartman , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Souradeep Chowdhury Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260126233830.2193816-1-elson.serrao@oss.qualcomm.com> <20260126233830.2193816-3-elson.serrao@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260126233830.2193816-3-elson.serrao@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTI3MDExMCBTYWx0ZWRfX5221iJYzW12d 1TsBEuCfNfcBOyxIwDHsYvyJE3++ntK3RBDk2LVhIWxqtuuLwBtLQltGUbUKEL+LEnNn1UK2dR+ UaZXmZ2B1ck9SZOarW4l0aE1xk4ijqu7CN7WFdMq7YyXTwF/+HT8juA6j6KrY3cJxxQl4wWgOvp YIXhIvsVdh97mba2DnABa+MLYTdBjlcMP2+2DEKjr02ySLCd12gi/oLKgJ1KBOsAOsuIGGODxof e0lplKOqLIlZqXABBro4mYobQxBbwXUVRxENUZxeXFiEDRcJSw9ABe+xq0yQ0RuQkaULw5HwiEP lwTimOhhr0cR4Ir3Mf6J8zaufsqF+B3w2J72FX/qDQcAN+jxubGc2IIyVJMcyoFVjIIaHYJNjai uaZggsJVbxlaoduOwUuCqGfaIHYkVGAkf9zohfSsJwRQ8iLX+v/7qzaotf4JQTfz6h7VmwgTwnQ dItywUyIdwwumwkGLig== X-Proofpoint-ORIG-GUID: KEWrxa207jx8ze0_GYUDDp4uLIS_DWRb X-Proofpoint-GUID: KEWrxa207jx8ze0_GYUDDp4uLIS_DWRb X-Authority-Analysis: v=2.4 cv=a6k9NESF c=1 sm=1 tr=0 ts=6978be43 cx=c_pps a=JIY1xp/sjQ9K5JH4t62bdg==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=Mi7szx8wPLqchxB2UhAA:9 a=QEXdDO2ut3YA:10 a=tNoRWFLymzeba-QzToBc:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-01-27_03,2026-01-27_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 spamscore=0 phishscore=0 lowpriorityscore=0 adultscore=0 priorityscore=1501 bulkscore=0 suspectscore=0 clxscore=1015 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2601270110 On 1/27/26 12:38 AM, Elson Serrao wrote: > EUD can be mapped to either the primary USB port or the secondary USB port > depending on the value of the EUD_PORT_SEL register. Add a 'port' sysfs > attribute to allow userspace to select which port EUD should operate on > and update the ABI documentation. This is needed for systems with dual > USB ports where EUD needs to be accessible on either port depending on the > system configuration and use case. > > Signed-off-by: Elson Serrao > --- Reviewed-by: Konrad Dybcio Konrad