diff options
author | Paul Elder <paul.elder@ideasonboard.com> | 2019-05-02 16:50:49 -0400 |
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committer | Paul Elder <paul.elder@ideasonboard.com> | 2019-05-03 16:31:10 -0400 |
commit | 977cfbd526f2da1cfce5c5c2b187c83af3d3efdc (patch) | |
tree | bc80ecc5b23a7a78c1c019b31aff0ad62600339a /src/libcamera/include | |
parent | 05ff3d56e04a33756a679d24fe5542e9e50935b4 (diff) |
libcamera: device_enumerator: add DeviceEnumeratorSysfs class
A udev-based device enumerator is not sufficient, since libudev is an
optional dependency, or udev might fail. In these cases, we should fall
back to using sysfs to enumerate devices.
Add a DeviceEnumeratorSysfs class which is a specialization of
DeviceEnumerator that uses sysfs to enumerate media devices on the
system.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'src/libcamera/include')
-rw-r--r-- | src/libcamera/include/device_enumerator_sysfs.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/libcamera/include/device_enumerator_sysfs.h b/src/libcamera/include/device_enumerator_sysfs.h new file mode 100644 index 00000000..8d3adc91 --- /dev/null +++ b/src/libcamera/include/device_enumerator_sysfs.h @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2019, Google Inc. + * + * device_enumerator_sysfs.h - sysfs-based device enumerator + */ +#ifndef __LIBCAMERA_DEVICE_ENUMERATOR_SYSFS_H__ +#define __LIBCAMERA_DEVICE_ENUMERATOR_SYSFS_H__ + +#include <string> + +#include "device_enumerator.h" + +namespace libcamera { + +class DeviceEnumeratorSysfs final : public DeviceEnumerator +{ +public: + int init(); + int enumerate(); + +private: + std::string lookupDeviceNode(int major, int minor); +}; + +} /* namespace libcamera */ + +#endif /* __LIBCAMERA_DEVICE_ENUMERATOR_SYSFS_H__ */ |