45e9809aff7304721fddb95654901b32195c9c7avboxsyncextern _X_EXPORT RamDacHelperRecPtr BTramdacProbe(ScrnInfoPtr pScrn, RamDacSupportedInfoRecPtr ramdacs);
45e9809aff7304721fddb95654901b32195c9c7avboxsyncextern _X_EXPORT void BTramdacSave(ScrnInfoPtr pScrn, RamDacRecPtr RamDacRec, RamDacRegRecPtr RamDacRegRec);
45e9809aff7304721fddb95654901b32195c9c7avboxsyncextern _X_EXPORT void BTramdacRestore(ScrnInfoPtr pScrn, RamDacRecPtr RamDacRec, RamDacRegRecPtr RamDacRegRec);
45e9809aff7304721fddb95654901b32195c9c7avboxsyncextern _X_EXPORT void BTramdacSetBpp(ScrnInfoPtr pScrn, RamDacRegRecPtr RamDacRegRec);
45e9809aff7304721fddb95654901b32195c9c7avboxsync * BT registers