V4L/DVB (4662): Pvrusb2: Implement VIDIOC_INT_[G|S]_REGISTER

Implement VIDIOC_INT_SET_REGISTER and VIDIOC_INT_GET_REGISTER for the
pvrusb2 driver.  This is a debugging aid which will not be enabled
unless CONFIG_VIDEO_ADV_DEBUG has been enabled.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.h b/drivers/media/video/pvrusb2/pvrusb2-hdw.h
index fd931b5da490..29979bb2a768 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.h
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.h
@@ -211,6 +211,14 @@ int pvr2_hdw_v4l_get_minor_number(struct pvr2_hdw *);
 /* Store the v4l minor device number */
 void pvr2_hdw_v4l_store_minor_number(struct pvr2_hdw *,int);
 
+/* Direct read/write access to chip's registers:
+   chip_id - unique id of chip (e.g. I2C_DRIVERD_xxxx)
+   reg_id  - register number to access
+   setFl   - true to set the register, false to read it
+   val_ptr - storage location for source / result. */
+int pvr2_hdw_register_access(struct pvr2_hdw *,
+                             u32 chip_id,unsigned long reg_id,
+                             int setFl,u32 *val_ptr);
 
 /* The following entry points are all lower level things you normally don't
    want to worry about. */