V4L/DVB (13870): gspca - zc3xx: Bad detection of sensor HV7131R(c).

The webcam 0ac8:303b may have the sensors HV7131B or HV7131R(c).
This changeset checks the HV7131 type.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 15 insertions, 2 deletions

diff --git a/drivers/media/video/gspca/zc3xx.c b/drivers/media/video/gspca/zc3xx.c
index 07dc5b6b4168..e0dd0ea0588e 100644
--- a/drivers/media/video/gspca/zc3xx.c
+++ b/drivers/media/video/gspca/zc3xx.c
@@ -6672,8 +6672,21 @@ static int sd_config(struct gspca_dev *gspca_dev,
                         }
                         break;
                 case 0:
-                        PDEBUG(D_PROBE, "Find Sensor HV7131B");
-                        sd->sensor = SENSOR_HV7131B;
+                        /* check the sensor type */
+                        sensor = i2c_read(gspca_dev, 0x00);
+                        PDEBUG(D_PROBE, "Sensor hv7131 type %d", sensor);
+                        switch (sensor) {
+                        case 0:                 /* hv7131b */
+                        case 1:                 /* hv7131e */
+                                PDEBUG(D_PROBE, "Find Sensor HV7131B");
+                                sd->sensor = SENSOR_HV7131B;
+                                break;
+                        default:
+/*                      case 2:                  * hv7131r */
+                                PDEBUG(D_PROBE, "Find Sensor HV7131R(c)");
+                                sd->sensor = SENSOR_HV7131C;
+                                break;
+                        }
                         break;
                 case 0x02:
                         PDEBUG(D_PROBE, "Sensor TAS5130C");