linux-kernel - [PATCH 1/2] usb: gadget: uvc: Updating bcdUVC field to 0x0110

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Date:   Mon, 8 Mar 2021 11:27:34 +0100
From:   Pawel Laszczak <pawell@...ence.com>
To:     <balbi@...nel.org>, <gregkh@...uxfoundation.org>
CC:     <linux-api@...r.kernel.org>, <laurent.pinchart@...asonboard.com>,
        <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <peter.chen@...nel.org>, <kurahul@...ence.com>,
        Pawel Laszczak <pawell@...ence.com>
Subject: [PATCH 1/2] usb: gadget: uvc: Updating bcdUVC field to 0x0110

From: Pawel Laszczak <pawell@...ence.com>

Command Verifier during UVC Descriptor Tests (Class Video Control
Interface Descriptor Test Video) compleins about:

Video Control Interface Header bcdUVC is 0x0100. USB Video Class
specification 1.0 has been replaced by 1.1 specification
(UVC: 6.2.26) Class Video Control Interface Descriptor bcdUVC is not 1.1

Signed-off-by: Pawel Laszczak <pawell@...ence.com>
---
 drivers/usb/gadget/function/uvc_configfs.c | 2 +-
 drivers/usb/gadget/legacy/webcam.c         | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/function/uvc_configfs.c b/drivers/usb/gadget/function/uvc_configfs.c
index 00fb58e50a15..cd28dec837dd 100644
--- a/drivers/usb/gadget/function/uvc_configfs.c
+++ b/drivers/usb/gadget/function/uvc_configfs.c
@@ -231,7 +231,7 @@ static struct config_item *uvcg_control_header_make(struct config_group *group,
 	h->desc.bLength			= UVC_DT_HEADER_SIZE(1);
 	h->desc.bDescriptorType		= USB_DT_CS_INTERFACE;
 	h->desc.bDescriptorSubType	= UVC_VC_HEADER;
-	h->desc.bcdUVC			= cpu_to_le16(0x0100);
+	h->desc.bcdUVC			= cpu_to_le16(0x0110);
 	h->desc.dwClockFrequency	= cpu_to_le32(48000000);
 
 	config_item_init_type_name(&h->item, name, &uvcg_control_header_type);
diff --git a/drivers/usb/gadget/legacy/webcam.c b/drivers/usb/gadget/legacy/webcam.c
index a9f8eb8e1c76..3a61de4bb2b1 100644
--- a/drivers/usb/gadget/legacy/webcam.c
+++ b/drivers/usb/gadget/legacy/webcam.c
@@ -90,7 +90,7 @@ static const struct UVC_HEADER_DESCRIPTOR(1) uvc_control_header = {
 	.bLength		= UVC_DT_HEADER_SIZE(1),
 	.bDescriptorType	= USB_DT_CS_INTERFACE,
 	.bDescriptorSubType	= UVC_VC_HEADER,
-	.bcdUVC			= cpu_to_le16(0x0100),
+	.bcdUVC			= cpu_to_le16(0x0110),
 	.wTotalLength		= 0, /* dynamic */
 	.dwClockFrequency	= cpu_to_le32(48000000),
 	.bInCollection		= 0, /* dynamic */
-- 
2.25.1