Hi Fengguang, Manjunatha, This patch series fixes the warning when registering the video node introduced after the patch that requires a valid v4l2_dev pointer. This driver slipped through because it didn't set the old parent pointer either. The other patches are improvements to the driver, fixing a number of problems. Due to lack of hardware I can't test this myself. Can either of you test it for me? Ideally I would like to see the output of the v4l2-compliance tool (part of http://git.linuxtv.org/v4l-utils.git). Run with 'v4l2-compliance -r0'. I know there will be failures because this driver combines the radio receiver and transmitter support in one radio node, something that isn't allowed anymore. One thing that is not included, but that I would like to add later is proper control support for RDS_TEXT, PS_NAME and the alternate frequency for the TX part. Right now this is done through an ugly custom write(), but there is proper API support for such things these days. BTW, does anyone know of a cheap devboard with this chip? It would be useful if I could test this driver myself. Regards, Hans -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html