DMA4_PTR2         313 drivers/media/pci/cx23885/cx23885-reg.h #define DMA4_PTR2	0x0010004C
DMA4_PTR2         665 drivers/media/pci/cx25821/cx25821-reg.h #define  DMA4_PTR2                 0x10008C	/* DMA Tab Ptr : Ch#4 */