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libcamera: v4l2_device: Report device node on failure

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When the V4L2Device fails to open, it is not clear what device
caused the failure. The Entity name is presented, but not the device
node.

Provide it.

Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
This commit is contained in:
Kieran Bingham 2022-09-03 12:50:42 +01:00
parent 29497a73dd
commit ad8af50d86
1 changed files with 2 additions and 1 deletions
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3
src/libcamera/v4l2_device.cpp
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@ -89,7 +89,8 @@ int V4L2Device::open(unsigned int flags)
UniqueFD fd(syscall(SYS_openat, AT_FDCWD, deviceNode_.c_str(), flags));
if (!fd.isValid()) {
int ret = -errno;
LOG(V4L2, Error) << "Failed to open V4L2 device: "
LOG(V4L2, Error) << "Failed to open V4L2 device '"
<< deviceNode_ << "': "
<< strerror(-ret);
return ret;
}