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Subject: v4l2-ctl: --list-devices: generate bus_info if missing
Author:  Hans Verkuil <hverkuil-ci...@xs4all.nl>
Date:    Wed Jan 30 14:46:54 2019 +0100

If the bus_info in media_device_info is not filled in, then generate it
based on the driver name.

Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>

 utils/v4l2-ctl/v4l2-ctl-common.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

---

http://git.linuxtv.org/cgit.cgi/v4l-utils.git/commit/?id=f24e04a82e8ca1bf9021b74bd098789f78321bb3
diff --git a/utils/v4l2-ctl/v4l2-ctl-common.cpp 
b/utils/v4l2-ctl/v4l2-ctl-common.cpp
index e68114d434c3..c660d15f22fc 100644
--- a/utils/v4l2-ctl/v4l2-ctl-common.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-common.cpp
@@ -224,7 +224,10 @@ static void list_devices()
 
                        err = ioctl(fd, MEDIA_IOC_DEVICE_INFO, &mdi);
                        if (!err) {
-                               bus_info = mdi.bus_info;
+                               if (mdi.bus_info[0])
+                                       bus_info = mdi.bus_info;
+                               else
+                                       bus_info = std::string("platform:") + 
mdi.driver;
                                if (mdi.model[0])
                                        card = mdi.model;
                                else

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