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

Hello Pawel,

Thank you for the patch.

On Sun, Mar 14, 2021 at 09:58:46AM +0800, Peter Chen wrote:

On 21-03-08 11:27:34, Pawel Laszczak wrote:

quoted

From: Pawel Laszczak <pawell@cadence.com>

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

%s/compleins/complains

quoted

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specification 1.0 has been replaced by 1.1 specification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

What does this (UVC: 6.2.26) mean? There are only 4 chapters for this
spec, Am I something wrong?

I assume this is a reference to a test case in the test suite.

quoted

Signed-off-by: Pawel Laszczak <pawell@cadence.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 */

The change looks good to me. With the typo in the commit message fixed,

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

-- 
Regards,

Laurent Pinchart