Lucent Technologies USS-720 manual IOCTL1284 Setmode, Register Mode Description

Page 71

Preliminary User Guide, Rev. 2

USS-720

February 1999

USB Device Driver

 

 

4 I/O Control Codes (continued)

4.4 IOCTL_1284_ SET_MODE

IOCTL_1284_ SET_MODE negotiates the peripheral into one of the valid register modes. Details regarding param- eters and error codes follow.

4.4.1 Parameters

lpInBuffer—Points to a buffer that contains a single byte that specifies one of the following register modes:

Register Mode

Description

 

 

STANDARD_REGISTER_MODE

Sets USS-720 into register-based Standard Mode.

 

 

BIDIRECTIONAL_REGISTER_MODE

Sets USS-720 into register-based Bidirectional Mode.

 

 

COMPATIBILITY_REGISTER_MODE

Sets USS-720 into register-based Compatibility Mode.

 

 

ECP_REGISTER_MODE

Negotiates the USS-720 into register-based ECP Mode without RLE.

 

 

ECP_RLE_REGISTER_MODE

Negotiates the USS-720 into register-based ECP Mode with RLE.

 

 

EPP_REGISTER_MODE

Currently not supported.*

 

 

*Using EPP mode is possible in the USS-720 for users capable of writing their own software based on the USS-720 data sheet information. However, the USS720.SYS driver does not support EPP mode applications.

nInBufferSize—Specifies the size (in bytes) of the buffer pointed to by lpInBuffer. For this operation, this value should be 1.

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.

4.4.2 Notes

All operations expect the USS-720 device to have been reset (see IOCTL_SOFT_RESET) before executing this command.

In standard, bidirectional, and compatibility register modes, no 1284 negotiation takes place. The USS-720 device is simply placed into the appropriate register-based operation. (See USS-720USB-to-IEEE 1284 Bridge Prelimi- nary Data Sheet, “Register-Based Operations.”)

In ECP_REGISTER_MODE and ECP_RLE_REGISTER_MODE, the USS-720 device is placed into ECP register- based operation after correctly negotiating into ECP mode via the Control and Status registers. (See USS-720USB-to-IEEE 1284 Bridge Preliminary Data Sheet, “Register-Based Operations.”)

4.4.3 Error Codes

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

ERROR_INVALID_REGISTER_MODE—Register mode is either invalid or not currently supported for the device instance.

STATUS_IO_DEVICE_ERROR—Negotiation failed.

Lucent Technologies Inc.

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Contents Information Manual, Rev September IntroductionTable of Contents September USB-to-IEEE Bridge Information Manual, Rev Evaluation Kit for USS-720IOCTLSET1284REGISTER USS-720 USB Device Driver Preliminary User GuideIOCTL1284 Terminate USS-720 USB Port Monitor Application Note Evaluation Kit Contents \SAMPLES Hardware RequirementsGetting Started Instructions OSR2.1 Cable Installation InstructionsWindows 98 Cable Installation Instructions Software UpdatesPort Creation USB Driver and Port MonitorPlug and Play Eeprom Lucent Technologies Inc In-System Design, Inc Lucent Technologies Microelectronics GroupUSB Applications Support September Introduction Evaluation Kit SoftwareUSS-720 Driver Software Object Code License Agreement FebruaryOwnership USS-720 Software Use Agreement FebruaryLicensed Software Furnishing of Licensed SoftwareFebruary Software Use Agreement USS-72004 Confidentiality Warranty and IndemnityAgreement Prevails Nothing ConstruedIntegration PublicityNonassignability AddressesDisputes Applicable LawDocumentation USS720.SYSUSS720.INF USS-720 Software Use Agreement February Application Note, Rev February Software ComponentsPrinter Enumeration Customer-Defined DataPlug and Play Operation PnP USB Hardware Types Supported Power ManagementInstallation Process Operating Systems SupportedPrint Types Supported Printer Types SupportedDescription FeaturesPreliminary Data Sheet, Rev September Table of Contents USB-to-IEEE Preliminary Data Sheet, Rev USS-720Pin Information Parallel Port nAck Signal Active-Low Parallel Port nAutoFd Signal Active-LowParallel Port nSelectIn Signal Active-Low Parallel Port nInit Signal Active-LowDescriptor Locations OverviewUSB Port Device Descriptor, Configurations, and Inter- facesDevice Descriptor Offset Field Size Value Description USB-to- Ieee 1284 Bridge SeptemberOnboard Device Descriptor Configuration Descriptor USB-to- IeeeBulk Out Endpoint Descriptor, I0A0E1 Interface DescriptorsBulk 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 Get Port Status Data Bit Description Printer Class-Specific RequestsSET1284REGISTER Vendor-Specific RequestsGET1284REGISTER Register-Based Operation Ieee 1284 PortByte Register Data RegistersGET1284REGISTER Data Byte Register Data Interrupt Pipe Read DataParallel Port nFault Signal Reserved Status Register Address Bit SymbolDefault Bit Symbol Bit Description USB-to-IEEE1284 Bridge Control Register Address Bit SymbolAccess Default Bit Symbol Bit Description Parallel Port nInit SignalUSS-720Instant USB ECP Command Register Address Bit Symbol Access Mode20 Description Extended Control Register Address Bit SymbolUSS-720 Control Register Address Bit Symbol USS-720 Setup Register Address Bit Symbol Interrupts External Crystal Connection External Circuitry RequirementsAbsolute Maximum Ratings Parameter Symbol Min Unit Filter Bypass ModeHigh Drive Mode Self-Powered ModeClklo Clkhi Electrical CharacteristicsParameter Symbol Test Conditions Min Typ Max Unit Capacitance Values Parameter UnitOutput Delay Timing Parameter Min Max Unit Timing CharacteristicsSetup and Hold Input Timing Parameter Device Code Package Comcode Outline DiagramOrdering Information Pin MqfpApplication Note February Description USS ParallelPort Bridging USB to Typical Circuit ShowingLucent Technologies Inc Preliminary User Guide, Rev February Signal DirectionsIOCTL1284 Setmode USB Device Driver InitializationO File Functions Preliminary User Guide, Rev USS-720 FebruaryCreateFile ReadFile Error CodesWriteFile DeviceIoControl CloseHandle Control Code Description O Control CodesParameters IOCTL1284 EcpfwdtorevIOCTL1284ECPREVTOFWD IOCTL1284 Ecpsetchannel IOCTL1284 Setmode Register Mode DescriptionIOCTL1284 Terminate Bulkinpipe IoctlabortpipeValue Description BulkoutpipeIoctlcancelpiperequest IOCTLGET1284REGISTER ALTINTERFACE2 IoctlgetaltsettingALTINTERFACE0 ALTINTERFACE1Ioctlgetcapabilities Ioctlgetconfigurationdescriptor Ioctlgetdevicedescriptor Ioctlgetdeviceinstances Ioctlgetinterface Bit Meaning IoctlgetportstatusCommand Description IOCTLISSUEUSS720COMMANDByte Description IoctlreadinterruptpipeIoctlresetpipe IOCTLSET1284REGISTER Ioctlsetaltsetting Ioctlsoftreset Data Structure O Control Data StructuresDeviceinstanceheader DeviceinstanceREGISTER1284, *PREGISTER1284 REGISTER1284ADVREGISTER1284, *PADVREGISTER1284 ADVREGISTER1284Lucent Technologies Inc USS-720 USB Port Monitor Printer Cable with Instant USB USS-720 Application Note USB Port Monitor FebruaryClick on Enter Library Software Installation InstructionsW98USS720EvalKit2402.zip to download the installation files Application Note JuneSeptember MN99-052CMPR-1 Replaces MN97-061CMPR-04
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