Lucent Technologies USS-720 manual IOCTLSET1284REGISTER

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USS-720	Preliminary User Guide, Rev. 2
USB Device Driver	February 1999

4 I/O Control Codes (continued)

4.19 IOCTL_SET_1284_REGISTER

IOCTL_SET_1284_REGISTER sets one of the 1284 registers. Details regarding parameters and error codes follow.

4.19.1 Parameters

lpInBuffer—Points to an input buffer that contains the following 2 bytes:

Byte	Description

0	Value to be written to the register.

1	Address of the parallel port register.

nInBufferSize—Speciﬁes the size (in bytes) of the buffer pointed to by lpInBuffer. For this operation, this value should be 2.

lpOutBuffer—Points to an output buffer. Not used with this operation. Set to NULL.

nOutBufferSize—Speciﬁes the size (in bytes) of the buffer pointed to by lpOutBuffer. Not used with this operation. Set to zero.

lpBytesReturned—Points to a DWORD that receives the actual size (in bytes) of the data stored into lpOutBuffer. Not used with this operation.

4.19.2 Notes

See USS-720USB-to-IEEE 1284 Bridge Preliminary Data Sheet, for more detail on the vendor-speciﬁc requests SET_1284_REGISTER.

4.19.3 Error Codes

ERROR_INVALID_ALTERNATESETTING—This command is only supported in ALT_INTERFACE_2 (see Section 4.9 of this document).

ERROR_INVALID_ADDRESS_REGISTER—Address of the parallel port register is read only.

STATUS_INSUFFICIENT_RESOURCES—Not enough memory to perform the request on this device instance.

7-28	Lucent Technologies Inc.

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Contents Introduction Information Manual, Rev SeptemberTable of Contents Information Manual, Rev Evaluation Kit for USS-720 September USB-to-IEEE BridgeIOCTLSET1284REGISTER USS-720 USB Device Driver Preliminary User GuideIOCTL1284 Terminate USS-720 USB Port Monitor Application Note Evaluation Kit Contents Hardware Requirements \SAMPLESOSR2.1 Cable Installation Instructions Getting Started InstructionsSoftware Updates Windows 98 Cable Installation InstructionsPort Creation USB Driver and Port MonitorPlug and Play Eeprom Lucent Technologies Inc Lucent Technologies Microelectronics Group In-System Design, IncUSB Applications Support September February Evaluation Kit SoftwareUSS-720 Driver Software Object Code License Agreement IntroductionFurnishing of Licensed Software USS-720 Software Use Agreement FebruaryLicensed Software OwnershipUSS-720 February Software Use AgreementNothing Construed Warranty and IndemnityAgreement Prevails 04 ConﬁdentialityAddresses PublicityNonassignability IntegrationApplicable Law DisputesDocumentation USS720.SYSUSS720.INF USS-720 Software Use Agreement February Software Components Application Note, Rev FebruaryPrinter Enumeration Customer-Deﬁned DataPlug and Play Operation PnP Operating Systems Supported Power ManagementInstallation Process USB Hardware Types SupportedPrinter Types Supported Print Types SupportedDescription FeaturesPreliminary Data Sheet, Rev September Table of Contents USB-to-IEEE Preliminary Data Sheet, Rev USS-720Pin Information Parallel Port nInit Signal Active-Low Parallel Port nAutoFd Signal Active-LowParallel Port nSelectIn Signal Active-Low Parallel Port nAck Signal Active-LowDevice Descriptor, Conﬁgurations, and Inter- faces OverviewUSB Port Descriptor LocationsDevice Descriptor Offset Field Size Value Description USB-to- Ieee 1284 Bridge SeptemberOnboard Device Descriptor USB-to- Ieee Conﬁguration DescriptorInterface Descriptors Bulk Out Endpoint Descriptor, I0A0E1Bulk In Endpoint Descriptor, I0A1E2 September USB-to-IEEE1284 BridgeBulk Out Endpoint Descriptor, I0A1E1 Interrupt Endpoint Descriptor, I0A2E3 Bulk Out Endpoint Descriptor, I0A2E1Bulk In Endpoint Descriptor, I0A2E2 Standard Requests PipesRequests Printer Class-Speciﬁc Requests Get Port Status Data Bit DescriptionSET1284REGISTER Vendor-Speciﬁc RequestsGET1284REGISTER Ieee 1284 Port Register-Based OperationInterrupt Pipe Read Data RegistersGET1284REGISTER Data Byte Register Data Byte Register DataParallel Port nFault Signal Reserved Status Register Address Bit SymbolDefault Bit Symbol Bit Description Parallel Port nInit Signal Control Register Address Bit SymbolAccess Default Bit Symbol Bit Description USB-to-IEEE1284 BridgeUSS-720Instant USB ECP Command Register Address Bit Symbol Access Extended Control Register Address Bit Symbol Mode20 DescriptionUSS-720 Control Register Address Bit Symbol USS-720 Setup Register Address Bit Symbol Interrupts External Circuitry Requirements External Crystal ConnectionSelf-Powered Mode Filter Bypass ModeHigh Drive Mode Absolute Maximum Ratings Parameter Symbol Min UnitCapacitance Values Parameter Unit Electrical CharacteristicsParameter Symbol Test Conditions Min Typ Max Unit Clklo ClkhiOutput Delay Timing Parameter Min Max Unit Timing CharacteristicsSetup and Hold Input Timing Parameter Pin Mqfp Outline DiagramOrdering Information Device Code Package ComcodeApplication Note February Description Bridging USB to Typical Circuit Showing ParallelPort USSLucent Technologies Inc Signal Directions Preliminary User Guide, Rev FebruaryIOCTL1284 Setmode Preliminary User Guide, Rev USS-720 February InitializationO File Functions USB Device DriverCreateFile Error Codes ReadFileWriteFile DeviceIoControl CloseHandle O Control Codes Control Code DescriptionIOCTL1284 Ecpfwdtorev ParametersIOCTL1284ECPREVTOFWD IOCTL1284 Ecpsetchannel Register Mode Description IOCTL1284 SetmodeIOCTL1284 Terminate Bulkoutpipe IoctlabortpipeValue Description BulkinpipeIoctlcancelpiperequest IOCTLGET1284REGISTER ALTINTERFACE1 IoctlgetaltsettingALTINTERFACE0 ALTINTERFACE2Ioctlgetcapabilities Ioctlgetconfigurationdescriptor Ioctlgetdevicedescriptor Ioctlgetdeviceinstances Ioctlgetinterface Ioctlgetportstatus Bit MeaningIOCTLISSUEUSS720COMMAND Command DescriptionIoctlreadinterruptpipe Byte DescriptionIoctlresetpipe IOCTLSET1284REGISTER Ioctlsetaltsetting Ioctlsoftreset Deviceinstance O Control Data StructuresDeviceinstanceheader Data StructureREGISTER1284 REGISTER1284, *PREGISTER1284ADVREGISTER1284 ADVREGISTER1284, *PADVREGISTER1284Lucent Technologies Inc USS-720 USB Port Monitor USS-720 Application Note USB Port Monitor February Printer Cable with Instant USBApplication Note June Software Installation InstructionsW98USS720EvalKit2402.zip to download the installation ﬁles Click on Enter LibrarySeptember MN99-052CMPR-1 Replaces MN97-061CMPR-04