rem: if (val & (EXID_REV0 | EXID_REV1) == EXID_REV1)
add: if ((val & (EXID_REV0 | EXID_REV1)) == EXID_REV1)
context: ac97_detect_capabilities(ac97_dev *dev){	uint16 val;		val = ac97_reg_cached_read(dev, AC97_RESET);	if (val & 0x0001)		dev->capabilities |= CAP_PCM_MIC;	if (val & 0x0004)		dev->capabilities |= CAP_BASS_TREBLE_CTRL;	if (val & 0x0008)		dev->capabilities |= CAP_SIMULATED_STEREO;	if (val & 0x0010)		dev->capabilities |= CAP_HEADPHONE_OUT;	if (val & 0x0020)		dev->capabilities |= CAP_LAUDNESS;	if (val & 0x0040)		dev->capabilities |= CAP_DAC_18BIT;	if (val & 0x0080)		dev->capabilities |= CAP_DAC_20BIT;	if (val & 0x0100)		dev->capabilities |= CAP_ADC_18BIT;	if (val & 0x0200)		dev->capabilities |= CAP_ADC_20BIT;	if (val & 0x7C00)		dev->capabilities |= CAP_3D_ENHANCEMENT;	val = ac97_reg_cached_read(dev, AC97_EXTENDED_ID);	if (val & EXID_VRA)		dev->capabilities |= CAP_VARIABLE_PCM;	if (val & EXID_DRA)		dev->capabilities |= CAP_DOUBLE_PCM;	if (val & EXID_SPDIF)		dev->capabilities |= CAP_SPDIF;	if (val & EXID_VRM)		dev->capabilities |= CAP_VARIABLE_MIC;	if (val & EXID_CDAC)		dev->capabilities |= CAP_CENTER_DAC;	if (val & EXID_SDAC)		dev->capabilities |= CAP_SURR_DAC;	if (val & EXID_LDAC)		dev->capabilities |= CAP_LFE_DAC;	if (val & EXID_AMAP)		dev->capabilities |= CAP_AMAP;	if (val & (EXID_REV0 | EXID_REV1) == 0)		dev->capabilities |= CAP_REV21;	if (val & (EXID_REV0 | EXID_REV1) == EXID_REV0)		dev->capabilities |= CAP_REV22;	if (val & (EXID_REV0 | EXID_REV1) == EXID_REV1)		dev->capabilities |= CAP_REV23;			ac97_detect_rates(dev);}		