Home		Prev Next
Contents Programming For Parallel Port Device Overview Programmers Guide Scenario I/O Ports control Single read/write operations Data array read/write operations Hardware interrupts handling at user level Common Issues LPT Support Routines Common Procedures OpenRapidLpt IsRapidLptOpened CloseRapidLpt OpenPort ClosePort GetNumLPTs GetPortNumber GetReadMode SetReadMode LPT specific functions Parallel port info GetBasePortAddress GetBaseSpan GetEcpAddress GetEcpSpan GetInterruptVector GetInterruptLevel GetInterruptAffinity GetInterruptMode Parallel port registers GetDataPort SetDataPort GetStatusPort SetStatusPort GetControlPort SetControlPort GetEcrPort SetEcrPort GetEPPAddressPort SetEPPAddressPort GetEPPDataPort SetEPPDataPort Centronix signals GetLptBusy GetLptPaperEnd GetLptSlct GetLptAutofd SetLptAutofd GetLptError LptInit LptSelectIn GetPrinterReady Parallel port modes GetCurrentLptMode SetCurrentLptMode GetIsPresent GetIsPS2Present GetIsEcpPresent Work with pins GetPin SetPin Work with bits GetDataPortBit SetDataPortBit GetStatusPortBit SetStatusPortBit GetControlPortBit SetControlPortBit GetCfgaPortBit SetCfgaPortBit GetCfgbPortBit SetCfgbPortBit GetEcrPortBit SetEcrPortBit Direct Port I/O GetPortByte GetPortWord GetPortLong SetPortByte SetPortWord SetPortLong ReadPortBuffer WritePortBuffer Hardware Interrupts UnmaskLptIrq MaskLptIrq GetInterruptCounter		Data array read/write operations Go to RapidDriver Main Page RapidLpt aslo contains two functions for read/write data arrays from/to port. These functions are based on insb/insw/insd assembly input commands and outsb/outsw/outsd output commands. ReadPortBuffer - reads a number of bytes, words, or double words from the specified port address into a buffer. WritePortBuffer - write an array of bytes Remember, these functions don't provide another exchange algorithm ("handshaking"). They are used only for devices with hardware support of group input/output operations.