SPCS2             722 include/sound/emu10k1.h #define SPCS2			0x56		/* SPDIF output Channel Status 2 register	*/
SPCS2             224 sound/pci/ca0106/ca0106.h #define SPCS2			0x43		/* SPDIF output Channel Status 2 register. For Center/LFE */
SPCS2             134 sound/pci/emu10k1/emu10k1x.c #define SPCS2			0x44		/* SPDIF output Channel Status 2 register	*/