From 9d29af143b6b91dfe34c7a302c12a077561438c5 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Thu, 24 Jan 2019 01:04:09 +0200 Subject: libcamera: media_device: Add disconnected signal MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The signal is emitted when the hardware device corresponding to the media device is unplugged. This will trigger the full unplug handling chain. Signed-off-by: Laurent Pinchart Reviewed-by: Niklas Söderlund --- src/libcamera/include/media_device.h | 4 ++++ src/libcamera/media_device.cpp | 10 ++++++++++ 2 files changed, 14 insertions(+) (limited to 'src') diff --git a/src/libcamera/include/media_device.h b/src/libcamera/include/media_device.h index 8a7b9489..27a2b46a 100644 --- a/src/libcamera/include/media_device.h +++ b/src/libcamera/include/media_device.h @@ -14,6 +14,8 @@ #include +#include + #include "media_object.h" namespace libcamera { @@ -48,6 +50,8 @@ public: MediaLink *link(const MediaPad *source, const MediaPad *sink); int disableLinks(); + Signal disconnected; + private: std::string driver_; std::string deviceNode_; diff --git a/src/libcamera/media_device.cpp b/src/libcamera/media_device.cpp index 51e5088e..be81bd8c 100644 --- a/src/libcamera/media_device.cpp +++ b/src/libcamera/media_device.cpp @@ -427,6 +427,16 @@ int MediaDevice::disableLinks() return 0; } +/** + * \var MediaDevice::disconnected + * \brief Signal emitted when the media device is disconnected from the system + * + * This signal is emitted when the device enumerator detects that the media + * device has been removed from the system. For hot-pluggable devices this is + * usually caused by physical device disconnection, but can also result from + * driver unloading for most devices. The media device is passed as a parameter. + */ + /** * \var MediaDevice::objects_ * \brief Global map of media objects (entities, pads, links) keyed by their -- cgit v1.2.1