From: Ricardo Ribalda <ribalda@chromium.org>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Hans de Goede <hansg@kernel.org>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-usb@vger.kernel.org,
Ricardo Ribalda <ribalda@chromium.org>
Subject: [PATCH v2 4/6] media: uvcvideo: Document how to format GUIDs
Date: Wed, 19 Nov 2025 19:37:13 +0000 [thread overview]
Message-ID: <20251119-uvcdynctrl-v2-4-0359ffb98c9e@chromium.org> (raw)
In-Reply-To: <20251119-uvcdynctrl-v2-0-0359ffb98c9e@chromium.org>
Manual formatting the GUIDs can lead to errors, document a
programmatically way to format the GUIDs from lsusb into something tha
the driver can use.
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
---
include/linux/usb/uvc.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/include/linux/usb/uvc.h b/include/linux/usb/uvc.h
index b939a01da11466747249c64c72a3ea40cd364a59..dea23aabbad48270c807463c1a7e1c0d1b79fc1f 100644
--- a/include/linux/usb/uvc.h
+++ b/include/linux/usb/uvc.h
@@ -10,6 +10,14 @@
/* ------------------------------------------------------------------------
* GUIDs
+ *
+ * The GUID returned by lsusb can be converted to this format with the
+ * following python snippet:
+ *
+ * import uuid
+ * id = "{01234567-89ab-cdef-0123-456789abcdef}"
+ * le = uuid.UUID(id).bytes_le
+ * print("{" + ", ".join([f"0x{b:02x}" for b in le]) + "}")
*/
#define UVC_GUID_UVC_CAMERA \
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
--
2.52.0.rc1.455.g30608eb744-goog
next prev parent reply other threads:[~2025-11-19 19:37 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-19 19:37 [PATCH v2 0/6] media: uvcvideo: Map known XU controls Ricardo Ribalda
2025-11-19 19:37 ` [PATCH v2 1/6] media: uvcvideo: Remove nodrop parameter Ricardo Ribalda
2025-12-08 10:54 ` Hans de Goede
2025-11-19 19:37 ` [PATCH v2 2/6] media: uvcvideo: Import standard controls from uvcdynctrl Ricardo Ribalda
2025-12-08 11:02 ` Hans de Goede
2025-12-08 11:12 ` Hans de Goede
2025-12-09 6:28 ` Ricardo Ribalda
2025-12-09 16:22 ` Hans de Goede
2025-11-19 19:37 ` [PATCH v2 3/6] media: uvcvideo: Announce deprecation intentions for UVCIOC_CTRL_MAP Ricardo Ribalda
2025-12-08 11:17 ` Hans de Goede
2025-12-09 6:41 ` Ricardo Ribalda
2025-12-09 16:27 ` Hans de Goede
2025-11-19 19:37 ` Ricardo Ribalda [this message]
2025-12-08 11:19 ` [PATCH v2 4/6] media: uvcvideo: Document how to format GUIDs Hans de Goede
2025-12-22 0:56 ` Laurent Pinchart
2025-11-19 19:37 ` [PATCH v2 5/6] media: uvcvideo: Introduce allow_privacy_override param Ricardo Ribalda
2025-11-19 21:54 ` Gergo Koteles
2025-11-19 22:09 ` Ricardo Ribalda
2025-12-08 11:58 ` Hans de Goede
2025-12-10 6:40 ` Ricardo Ribalda
2025-11-19 19:37 ` [PATCH v2 6/6] media: uvcvideo: RFC: Convert allow_privacy_override into Kconfig Ricardo Ribalda
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