From: Russell King - ARM Linux <linux@armlinux.org.uk>
To: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Cc: Steve Longerbeam <slongerbeam@gmail.com>,
robh+dt@kernel.org, mark.rutland@arm.com, shawnguo@kernel.org,
kernel@pengutronix.de, fabio.estevam@nxp.com, mchehab@kernel.org,
hverkuil@xs4all.nl, nick@shmanahar.org,
markus.heiser@darmarIT.de, p.zabel@pengutronix.de,
laurent.pinchart+renesas@ideasonboard.com, bparrot@ti.com,
geert@linux-m68k.org, arnd@arndb.de, sudipm.mukherjee@gmail.com,
minghsiu.tsai@mediatek.com, tiffany.lin@mediatek.com,
jean-christophe.trotin@st.com, horms+renesas@verge.net.au,
niklas.soderlund+renesas@ragnatech.se, robert.jarzmik@free.fr,
songjun.wu@microchip.com, andrew-ct.chen@mediatek.com,
gregkh@linuxfoundation.org, shuah@kernel.org,
sakari.ailus@linux.intel.com, pavel@ucw.cz,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-media@vger.kernel.org, devel@driverdev.osuosl.org,
Steve Longerbeam <steve_longerbeam@mentor.com>
Subject: Re: [PATCH v5 00/39] i.MX Media Driver
Date: Sun, 12 Mar 2017 21:13:24 +0000 [thread overview]
Message-ID: <20170312211324.GW21222@n2100.armlinux.org.uk> (raw)
In-Reply-To: <20170312175923.6ad86dff@vento.lan>
On Sun, Mar 12, 2017 at 05:59:28PM -0300, Mauro Carvalho Chehab wrote:
> Yet, udev/systemd has some rules that provide an unique name for V4L
> devices at /lib/udev/rules.d/60-persistent-v4l.rules. Basically, it
> runs a small application (v4l_id) with creates a persistent symling
> using rules like this:
>
> KERNEL=="video*", ENV{ID_SERIAL}=="?*", SYMLINK+="v4l/by-id/$env{ID_BUS}-$env{ID_SERIAL}-video-index$attr{index}"
>
> Those names are stored at /dev/v4l/by-path.
This doesn't help:
$ ls -Al /dev/v4l/by-id/
total 0
lrwxrwxrwx 1 root root 13 Mar 12 19:54 usb-Sonix_Technology_Co.__Ltd._USB_2.0_Camera-video-index0 -> ../../video10
$ ls -Al /dev/v4l/by-path/
total 0
lrwxrwxrwx 1 root root 12 Mar 12 19:54 platform-2040000.vpu-video-index0 -> ../../video0
lrwxrwxrwx 1 root root 12 Mar 12 19:54 platform-2040000.vpu-video-index1 -> ../../video1
lrwxrwxrwx 1 root root 12 Mar 12 20:53 platform-capture-subsystem-video-index0 -> ../../video2
lrwxrwxrwx 1 root root 12 Mar 12 20:53 platform-capture-subsystem-video-index1 -> ../../video3
lrwxrwxrwx 1 root root 12 Mar 12 20:53 platform-capture-subsystem-video-index2 -> ../../video4
lrwxrwxrwx 1 root root 12 Mar 12 20:53 platform-capture-subsystem-video-index3 -> ../../video5
lrwxrwxrwx 1 root root 12 Mar 12 20:53 platform-capture-subsystem-video-index4 -> ../../video6
lrwxrwxrwx 1 root root 12 Mar 12 20:53 platform-capture-subsystem-video-index5 -> ../../video7
lrwxrwxrwx 1 root root 12 Mar 12 20:53 platform-capture-subsystem-video-index6 -> ../../video8
lrwxrwxrwx 1 root root 12 Mar 12 20:53 platform-capture-subsystem-video-index7 -> ../../video9
lrwxrwxrwx 1 root root 13 Mar 12 19:54 platform-ci_hdrc.0-usb-0:1:1.0-video-index0 -> ../../video10
The problem is the "platform-capture-subsystem-video-index" entries.
These themselves change order. For instance, I now have:
- entity 72: ipu1_csi0 capture (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video6
which means it's platform-capture-subsystem-video-index4. Before, it
was platform-capture-subsystem-video-index2.
--
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up
according to speedtest.net.
next prev parent reply other threads:[~2017-03-12 21:14 UTC|newest]
Thread overview: 175+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-10 4:52 [PATCH v5 00/39] i.MX Media Driver Steve Longerbeam
2017-03-10 4:52 ` [PATCH v5 01/39] [media] dt-bindings: Add bindings for video-multiplexer device Steve Longerbeam
2017-03-16 21:21 ` Rob Herring
2017-03-10 4:52 ` [PATCH v5 02/39] [media] dt-bindings: Add bindings for i.MX media driver Steve Longerbeam
2017-03-20 15:02 ` Rob Herring
2017-03-10 4:52 ` [PATCH v5 03/39] [media] dt/bindings: Add bindings for OV5640 Steve Longerbeam
2017-03-20 15:03 ` Rob Herring
2017-03-10 4:52 ` [PATCH v5 04/39] ARM: dts: imx6qdl: Add compatible, clocks, irqs to MIPI CSI-2 node Steve Longerbeam
2017-03-10 4:52 ` [PATCH v5 05/39] ARM: dts: imx6qdl: Add mipi_ipu1/2 multiplexers, mipi_csi, and their connections Steve Longerbeam
2017-03-10 4:52 ` [PATCH v5 06/39] ARM: dts: imx6qdl: add capture-subsystem device Steve Longerbeam
2017-03-10 4:52 ` [PATCH v5 07/39] ARM: dts: imx6qdl-sabrelite: remove erratum ERR006687 workaround Steve Longerbeam
2017-03-10 18:59 ` Troy Kisky
2017-03-10 19:17 ` Fabio Estevam
2017-03-10 21:57 ` Pavel Machek
2017-03-10 22:05 ` Fabio Estevam
2017-03-15 18:49 ` Steve Longerbeam
2017-03-10 4:52 ` [PATCH v5 08/39] ARM: dts: imx6-sabrelite: add OV5642 and OV5640 camera sensors Steve Longerbeam
2017-03-10 4:52 ` [PATCH v5 09/39] ARM: dts: imx6-sabresd: " Steve Longerbeam
2017-03-10 4:52 ` [PATCH v5 10/39] ARM: dts: imx6-sabreauto: create i2cmux for i2c3 Steve Longerbeam
2017-03-10 4:52 ` [PATCH v5 11/39] ARM: dts: imx6-sabreauto: add reset-gpios property for max7310_b Steve Longerbeam
2017-03-10 4:52 ` [PATCH v5 12/39] ARM: dts: imx6-sabreauto: add pinctrl for gpt input capture Steve Longerbeam
2017-03-10 4:52 ` [PATCH v5 13/39] ARM: dts: imx6-sabreauto: add the ADV7180 video decoder Steve Longerbeam
2017-03-10 4:52 ` [PATCH v5 14/39] add mux and video interface bridge entity functions Steve Longerbeam
2017-03-10 4:52 ` [PATCH v5 15/39] [media] v4l2: add a frame interval error event Steve Longerbeam
2017-03-10 12:03 ` Hans Verkuil
2017-03-10 18:37 ` Steve Longerbeam
2017-03-10 23:30 ` Pavel Machek
2017-03-10 23:42 ` Steve Longerbeam
2017-03-11 11:39 ` Hans Verkuil
2017-03-11 18:14 ` Steve Longerbeam
2017-03-11 18:51 ` Russell King - ARM Linux
2017-03-11 18:58 ` Steve Longerbeam
2017-03-11 19:00 ` Steve Longerbeam
2017-03-13 10:02 ` Hans Verkuil
2017-03-13 10:45 ` Russell King - ARM Linux
2017-03-13 10:53 ` Hans Verkuil
2017-03-13 17:06 ` Steve Longerbeam
2017-03-13 17:10 ` Hans Verkuil
2017-03-13 21:47 ` Steve Longerbeam
2017-03-14 16:21 ` Nicolas Dufresne
2017-03-14 16:43 ` Steve Longerbeam
2017-03-16 22:15 ` Sakari Ailus
2017-03-14 16:47 ` Russell King - ARM Linux
2017-03-14 16:50 ` Steve Longerbeam
2017-03-14 18:26 ` Pavel Machek
2017-03-10 4:52 ` [PATCH v5 16/39] [media] v4l2: add a new-frame before end-of-frame event Steve Longerbeam
2017-03-10 12:07 ` Hans Verkuil
2017-03-10 4:52 ` [PATCH v5 17/39] [media] v4l2-mc: add a function to inherit controls from a pipeline Steve Longerbeam
2017-03-10 11:45 ` Hans Verkuil
2017-03-10 4:52 ` [PATCH v5 18/39] [media] v4l: subdev: Add function to validate frame interval Steve Longerbeam
2017-03-11 13:41 ` Sakari Ailus
2017-03-11 20:31 ` Steve Longerbeam
2017-03-16 22:17 ` Sakari Ailus
2017-03-10 4:52 ` [PATCH v5 19/39] [media] add Omnivision OV5640 sensor driver Steve Longerbeam
2017-03-10 4:53 ` [PATCH v5 20/39] platform: add video-multiplexer subdevice driver Steve Longerbeam
2017-03-10 4:53 ` [PATCH v5 21/39] UAPI: Add media UAPI Kbuild file Steve Longerbeam
2017-03-11 13:49 ` Sakari Ailus
2017-03-11 18:20 ` Steve Longerbeam
2017-03-13 9:55 ` Hans Verkuil
2017-03-10 4:53 ` [PATCH v5 22/39] media: Add userspace header file for i.MX Steve Longerbeam
2017-03-10 11:49 ` Hans Verkuil
2017-03-10 23:32 ` Pavel Machek
2017-03-10 4:53 ` [PATCH v5 23/39] media: Add i.MX media core driver Steve Longerbeam
2017-03-10 4:53 ` [PATCH v5 24/39] media: imx: Add Capture Device Interface Steve Longerbeam
2017-03-10 4:53 ` [PATCH v5 25/39] media: imx: Add CSI subdev driver Steve Longerbeam
2017-03-10 4:53 ` [PATCH v5 26/39] media: imx: Add VDIC " Steve Longerbeam
2017-03-10 4:53 ` [PATCH v5 27/39] media: imx: Add IC subdev drivers Steve Longerbeam
2017-03-10 4:53 ` [PATCH v5 28/39] media: imx: Add MIPI CSI-2 Receiver subdev driver Steve Longerbeam
2017-03-10 4:53 ` [PATCH v5 29/39] ARM: imx_v6_v7_defconfig: Enable staging video4linux drivers Steve Longerbeam
2017-03-10 4:53 ` [PATCH v5 30/39] media: imx: add support for bayer formats Steve Longerbeam
2017-03-10 4:53 ` [PATCH v5 31/39] media: imx: csi: " Steve Longerbeam
2017-03-10 4:53 ` [PATCH v5 32/39] media: imx: csi: fix crop rectangle changes in set_fmt Steve Longerbeam
2017-03-10 4:53 ` [PATCH v5 33/39] media: imx: mipi-csi2: enable setting and getting of frame rates Steve Longerbeam
2017-03-10 4:53 ` [PATCH v5 34/39] media: imx: csi: add __csi_get_fmt Steve Longerbeam
2017-03-10 4:53 ` [PATCH v5 35/39] media: imx: csi/fim: add support for frame intervals Steve Longerbeam
2017-03-10 4:53 ` [PATCH v5 36/39] media: imx: redo pixel format enumeration and negotiation Steve Longerbeam
2017-03-10 4:53 ` [PATCH v5 37/39] media: imx: csi: add frame skipping support Steve Longerbeam
2017-03-10 4:53 ` [PATCH v5 38/39] media: imx: csi: fix crop rectangle reset in sink set_fmt Steve Longerbeam
2017-03-19 15:22 ` Russell King - ARM Linux
2017-03-19 19:08 ` Steve Longerbeam
2017-03-20 11:55 ` Philipp Zabel
2017-03-20 12:08 ` Russell King - ARM Linux
2017-03-20 14:00 ` Philipp Zabel
2017-03-20 14:17 ` Russell King - ARM Linux
2017-03-20 17:16 ` Russell King - ARM Linux
2017-03-20 17:23 ` Philipp Zabel
2017-03-20 20:47 ` Russell King - ARM Linux
2017-03-21 4:03 ` Steve Longerbeam
2017-03-21 11:27 ` Russell King - ARM Linux
2017-03-21 23:56 ` Steve Longerbeam
2017-03-21 23:33 ` Steve Longerbeam
2017-03-20 17:40 ` Philipp Zabel
2017-03-20 17:59 ` Russell King - ARM Linux
2017-03-20 19:48 ` Steve Longerbeam
2017-03-10 4:53 ` [PATCH v5 39/39] media: imx: propagate sink pad formats to source pads Steve Longerbeam
2017-03-10 20:13 ` [PATCH v5 00/39] i.MX Media Driver Russell King - ARM Linux
2017-03-10 23:20 ` Steve Longerbeam
2017-03-12 17:47 ` Russell King - ARM Linux
2017-03-12 0:30 ` Steve Longerbeam
2017-03-12 19:57 ` Russell King - ARM Linux
2017-03-12 20:05 ` Steve Longerbeam
2017-03-12 20:22 ` Russell King - ARM Linux
2017-03-13 4:26 ` Steve Longerbeam
2017-03-13 8:16 ` Russell King - ARM Linux
2017-03-13 9:30 ` Russell King - ARM Linux
2017-03-13 23:39 ` Steve Longerbeam
2017-03-13 23:37 ` Steve Longerbeam
2017-03-12 17:51 ` Russell King - ARM Linux
2017-03-12 19:21 ` Steve Longerbeam
2017-03-12 19:29 ` Russell King - ARM Linux
2017-03-12 19:44 ` Steve Longerbeam
2017-03-12 20:16 ` Steve Longerbeam
2017-03-12 20:36 ` Steve Longerbeam
2017-03-12 20:39 ` Steve Longerbeam
2017-03-12 20:40 ` Russell King - ARM Linux
2017-03-12 21:09 ` Russell King - ARM Linux
2017-03-14 17:29 ` Steve Longerbeam
2017-03-18 20:02 ` Steve Longerbeam
2017-03-12 19:47 ` Russell King - ARM Linux
2017-03-12 20:00 ` Steve Longerbeam
2017-03-12 20:59 ` Mauro Carvalho Chehab
2017-03-12 21:13 ` Russell King - ARM Linux [this message]
2017-03-12 22:10 ` Mauro Carvalho Chehab
2017-03-14 17:02 ` Steve Longerbeam
2017-03-18 19:22 ` Russell King - ARM Linux
2017-03-18 19:58 ` Steve Longerbeam
2017-03-18 20:43 ` Russell King - ARM Linux
2017-03-19 0:41 ` Nicolas Dufresne
2017-03-19 0:54 ` Russell King - ARM Linux
2017-03-19 14:33 ` Nicolas Dufresne
2017-03-19 14:51 ` Russell King - ARM Linux
2017-03-19 9:55 ` Russell King - ARM Linux
2017-03-19 14:45 ` Nicolas Dufresne
2017-03-19 13:57 ` Vladimir Zapolskiy
2017-03-19 14:21 ` Russell King - ARM Linux
2017-03-19 14:22 ` Russell King - ARM Linux
2017-03-19 15:00 ` Vladimir Zapolskiy
2017-03-19 15:09 ` Russell King - ARM Linux
2017-03-19 14:47 ` Nicolas Dufresne
2017-03-19 10:38 ` Russell King - ARM Linux
2017-03-19 10:48 ` [PATCH 1/4] media: imx-media-csi: fix v4l2-compliance check Russell King
2017-03-19 22:00 ` Steve Longerbeam
2017-03-19 10:48 ` [PATCH 2/4] media: imx: allow bayer pixel formats to be looked up Russell King
2017-03-19 22:02 ` Steve Longerbeam
2017-03-19 10:49 ` [PATCH 3/4] media: imx-csi: add frame size/interval enumeration Russell King
2017-03-19 22:18 ` Steve Longerbeam
2017-03-21 23:46 ` Steve Longerbeam
2017-03-19 10:49 ` [PATCH 4/4] media: imx-media-capture: add frame sizes/interval enumeration Russell King
2017-03-19 22:21 ` Steve Longerbeam
2017-03-19 22:39 ` Russell King - ARM Linux
2017-03-20 8:55 ` Philippe De Muyter
2017-03-20 9:05 ` Russell King - ARM Linux
2017-03-20 9:23 ` Philippe De Muyter
2017-03-20 10:41 ` Russell King - ARM Linux
2017-03-19 17:54 ` [PATCH v5 00/39] i.MX Media Driver Steve Longerbeam
2017-03-19 18:04 ` Russell King - ARM Linux
2017-03-20 13:01 ` Hans Verkuil
2017-03-20 13:29 ` Russell King - ARM Linux
2017-03-20 13:57 ` Hans Verkuil
2017-03-20 14:11 ` Russell King - ARM Linux
2017-03-20 15:57 ` Hans Verkuil
2017-03-21 10:42 ` Niklas Söderlund
2017-03-21 10:59 ` Hans Verkuil
2017-03-21 11:36 ` Russell King - ARM Linux
2017-03-22 18:10 ` Nicolas Dufresne
2017-03-19 12:14 ` Russell King - ARM Linux
2017-03-19 18:37 ` Steve Longerbeam
2017-03-19 18:51 ` Russell King - ARM Linux
2017-03-19 18:56 ` Steve Longerbeam
2017-03-20 12:49 ` Hans Verkuil
2017-03-20 13:20 ` Philipp Zabel
2017-03-20 15:43 ` Russell King - ARM Linux
2017-03-20 16:29 ` Philipp Zabel
2017-03-20 16:35 ` Russell King - ARM Linux
2017-03-20 13:15 ` Philipp Zabel
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