        // front camera
        {.vfe_intf = VFE1, .intftype = RDI0, .num_cids = 1, .cids[0] = CID0, .csid = CSID2},
        // rear camera (focus)
        {.vfe_intf = VFE0, .intftype = RDI1, .num_cids = CID1, .cids[0] = CID1, .csid = CSID0},
        // rear camera (stats, for AE)
        {.vfe_intf = VFE0, .intftype = RDI2, .num_cids = 1, .cids[0] = CID2, .csid = CSID0},
      },
    };
    s->msmcfg_fd = open("/dev/media0", O_RDWR | O_NONBLOCK);
    assert(s->msmcfg_fd >= 0);
 
</s> remove       // rear camera (focus)
 </s> add       // road camera (focus) </s> remove       // front camera
 </s> add       // driver camera </s> remove       // rear camera
 </s> add       // road camera </s> remove   // init rear sensor
 </s> add   // init road camera sensor </s> remove   s->rear.video1_fd = s->front.video1_fd = s->wide.video1_fd = s->video1_fd;
 </s> add   s->road_cam.video1_fd = s->driver_cam.video1_fd = s->wide_road_cam.video1_fd = s->video1_fd;
      // road camera (stats, for AE)
        // front camera
        {.vfe_intf = VFE1, .intftype = RDI0, .num_cids = 1, .cids[0] = CID0, .csid = CSID2},
        // rear camera (focus)
        {.vfe_intf = VFE0, .intftype = RDI1, .num_cids = CID1, .cids[0] = CID1, .csid = CSID0},
      // road camera (stats, for AE)
        {.vfe_intf = VFE0, .intftype = RDI2, .num_cids = 1, .cids[0] = CID2, .csid = CSID0},
      },
    };
    s->msmcfg_fd = open("/dev/media0", O_RDWR | O_NONBLOCK);
    assert(s->msmcfg_fd >= 0);
keep keep keep keep replace keep keep keep keep keep
 camerad: rename variables&functions to follow new convention (#20096)

* rename CameraState variables to follow new convention

* continue

* rename camera_process functions

* qcom:rename exposure related variables

* continue

* update commments

* bool real -> bool is_road_cam

* rename sm_front -> sm

* remove paramater tname from start_process_thread

* rename rhd_front to is_rhd

* remove unused varialble name from struct CameraInfo

* rename env_send_xxx

* rename cap_front to cap_driver,cap_rear to cap_road

* rename xxx_camera_process to process_xxx_camera

* update snapshot.py 
selfdrive/camerad/cameras/camera_qcom.cc