From a65682a97e19f96b86aeceb3ca3befb1687e3861 Mon Sep 17 00:00:00 2001 From: Marcus Folkesson Date: Tue, 31 Jan 2023 09:14:15 +0100 Subject: [PATCH] core: pass VIDIOC_QUERYCAP as unsigned long VIDIOC_QUARYCAP is an unsigned long and should be passed as one. Get rid of the following error: core/libcamera_app.cpp:33:22: error: overflow in conversion from 'long unsigned int' to 'int' changes value from '2154321408' to '-2140645888' [-Werror=overflow] 33 | int ret = ioctl(fd, VIDIOC_QUERYCAP, &caps); Upstream: https://github.com/raspberrypi/libcamera-apps/commit/a65682a97e19f96b86aeceb3ca3befb1687e3861 Signed-off-by: Marcus Folkesson --- core/libcamera_app.cpp | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/core/libcamera_app.cpp b/core/libcamera_app.cpp index 04696fb..8cb6563 100644 --- a/core/libcamera_app.cpp +++ b/core/libcamera_app.cpp @@ -30,7 +30,9 @@ static void check_camera_stack() return; v4l2_capability caps; - int ret = ioctl(fd, VIDIOC_QUERYCAP, &caps); + unsigned long request = VIDIOC_QUERYCAP; + + int ret = ioctl(fd, request, &caps); close(fd); if (ret < 0 || strcmp((char *)caps.driver, "bm2835 mmal")) -- 2.38.1