From 88307eb3c69c80a705072e68463d8f72005fc027 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Fri, 14 Sep 2007 04:49:16 -0300 Subject: [PATCH] V4L/DVB (6460): v4l2-i2c-drv: add legacy_probe function pointer Some devices do complicated tests whether the device can be probed or not. Add a legacy_probe function pointer to support that. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-i2c-drv-legacy.h | 6 ++++++ include/media/v4l2-i2c-drv.h | 1 + 2 files changed, 7 insertions(+) diff --git a/include/media/v4l2-i2c-drv-legacy.h b/include/media/v4l2-i2c-drv-legacy.h index c059b32844..433c984eef 100644 --- a/include/media/v4l2-i2c-drv-legacy.h +++ b/include/media/v4l2-i2c-drv-legacy.h @@ -29,6 +29,7 @@ struct v4l2_i2c_driver_data { int (*remove)(struct i2c_client *client); int (*suspend)(struct i2c_client *client, pm_message_t state); int (*resume)(struct i2c_client *client); + int (*legacy_probe)(struct i2c_adapter *adapter); int legacy_class; }; @@ -45,6 +46,11 @@ static int v4l2_i2c_drv_attach_legacy(struct i2c_adapter *adapter, int address, static int v4l2_i2c_drv_probe_legacy(struct i2c_adapter *adapter) { + if (v4l2_i2c_data.legacy_probe) { + if (v4l2_i2c_data.legacy_probe(adapter)) + return i2c_probe(adapter, &addr_data, v4l2_i2c_drv_attach_legacy); + return 0; + } if (adapter->class & v4l2_i2c_data.legacy_class) return i2c_probe(adapter, &addr_data, v4l2_i2c_drv_attach_legacy); return 0; diff --git a/include/media/v4l2-i2c-drv.h b/include/media/v4l2-i2c-drv.h index 547db60d36..bc61ab2777 100644 --- a/include/media/v4l2-i2c-drv.h +++ b/include/media/v4l2-i2c-drv.h @@ -29,6 +29,7 @@ struct v4l2_i2c_driver_data { int (*remove)(struct i2c_client *client); int (*suspend)(struct i2c_client *client, pm_message_t state); int (*resume)(struct i2c_client *client); + int (*legacy_probe)(struct i2c_adapter *adapter); int legacy_class; }; -- 2.39.5