->v4l2_subdev_init--注册操作函数集为csi2_subdev_ops的subdev,设备名称为"rockchip-mipi-csi2"。V4L2_SUBDEV_FL_HAS_DEVNODE表示需要创建device node。->devm_request_irq--获取中断并注册中断处理函数。 ->rk_csirx_irq1_handler--中断1的处理函数。 ->rk_csirx_irq2_handler--中断2的处理函数。 ->csi...
Dmabufs allow buffers to be shared between kernel subsystems. For V4L2, once you have allocated buffers you can call VIDIOC_EXPBUF to get an associated dmabuf handle (it's a file descriptor that you can mmap and do a few other manipulations on). https://www.linuxtv.org/downloads/v4l-...
if (v4l2_device_register(&intf->dev, &dev->vdev) < 0) gotoerror; /* Initialize controls. */ if (uvc_ctrl_init_device(dev) < 0)---对解析出来的控制进行初始化。 gotoerror; /* Scan the device for video chains. */ if (uvc_scan_device(dev) < 0)---uvc扫描视频链。 gotoerror; ...
[h264_v4l2m2m @ 0x1857460] driver 'exynos-gsc' on card 'exynos-gsc gscaler' [h264_v4l2m2m @ 0x1857460] v4l2 capture format not supported [h264_v4l2m2m @ 0x1857460] probing device /dev/video20 [h264_v4l2m2m @ 0x1857460] driver 'exynos-gsc' on card 'exynos-gsc gscaler' [h264_v4l...
iommu_device_sysfs_add iommu_device_register 2.3 RKCIF MIPI_LVDS RKCIF MIPI LVDS作为VICAP的一个通道,支持MIPI/LVDS数据搬运: 对应的应将为rkcif,使用iommu作为MMU。 Sink Pad来自于CSI2 Host的mipi2_csi2_output。 rkcif_mipi_lvds2: rkcif-mipi-lvds2 { ...