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([110.226.177.250]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-be4fb248be1sm13113892a12.3.2025.12.01.12.37.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 Dec 2025 12:37:37 -0800 (PST) From: Clint George To: stern@rowland.harvard.edu, gregkh@linuxfoundation.org Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, david.hunter.linux@gmail.com, linux-kernel-mentees@lists.linux.dev, skhan@linuxfoundation.org, khalid@kernel.org, Clint George Subject: [PATCH v2 3/6] usb: gadget: dummy_hcd: document ISO endpoint allocation pattern Date: Tue, 2 Dec 2025 02:07:12 +0530 Message-ID: <20251201203715.17768-4-clintbgeorge@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251201203715.17768-1-clintbgeorge@gmail.com> References: <20251119130840.14309-1-clintbgeorge@gmail.com> <20251201203715.17768-1-clintbgeorge@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Remove commented-out ISO definition and add relevant comment documenting the ISO endpoint allocation pattern. --- drivers/usb/gadget/udc/dummy_hcd.c | 22 +++++----------------- 1 file changed, 5 insertions(+), 17 deletions(-) diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/du= mmy_hcd.c index 39b571899..e4124838e 100644 --- a/drivers/usb/gadget/udc/dummy_hcd.c +++ b/drivers/usb/gadget/udc/dummy_hcd.c @@ -151,35 +151,23 @@ static const struct { EP_INFO("ep2out-bulk", USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)), /* - EP_INFO("ep3in-iso", - USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_IN)), - EP_INFO("ep4out-iso", - USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_OUT)), -*/ + * If dummy-hcd supported isochronous transfers: + * - Endpoints 3 and 4 would be ISO IN/OUT respectively + * - Endpoints 8 and 9 would be ISO IN/OUT respectively + * - Endpoints 13 and 14 would be ISO IN/OUT respectively + */ EP_INFO("ep5in-int", USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)), EP_INFO("ep6in-bulk", USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)), EP_INFO("ep7out-bulk", USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)), -/* - EP_INFO("ep8in-iso", - USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_IN)), - EP_INFO("ep9out-iso", - USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_OUT)), -*/ EP_INFO("ep10in-int", USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)), EP_INFO("ep11in-bulk", USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)), EP_INFO("ep12out-bulk", USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)), -/* - EP_INFO("ep13in-iso", - USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_IN)), - EP_INFO("ep14out-iso", - USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_OUT)), -*/ EP_INFO("ep15in-int", USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)), =20 --=20 2.43.0