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| PrUSB/Host is a USB host protocol stack that complies with USB1.1 and 2.0 (full speed/high speed) for embedded systems. PrUSB/Host enables communication with USB devices without using a PC. |
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| PrUSB/Host has the following USB host features: |
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Detects USB device insertion/removal |
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Manages USB standard requests in control transfers |
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Manages host-device data flow |
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Supports hubs for management of multiple USB devices |
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| PrUSB/Host supports the following transfer types: |
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Control transfer: Data transfer for the control endpoint between the host and the target |
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Bulk transfer: Transfer of large amounts of data or non-cyclic data transfers |
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Interrupt transfer: Cyclic transfer of relatively small amounts of data |
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Isochronous Transfer: Transfer mode for streaming audio |
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| Equipped with an HID class driver |
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| PrUSB/Host comes with a standard HID (human interface device) class driver. |
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| Additional sample class drivers |
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| PrUSB/Host comes with a sample class driver as a reference for creating a new class driver. |
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| Optional Class drivers available |
| We provide optional class drivers including; |
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Mass Storage Class diver |
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ACM(Abstract Control Model) supported Communication Device Class driver |
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Audio Class driver |
| The Mass Storage Class driver enables connectivity with devices supporting the Mass Storage Class such as external drives or digital cameras. The Mass Storage Class driver has the following characteristics: |
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Supports the bulk-only transfer protocol and CBI transport specification |
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Supports the subclasses below:
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SCSI transparent command set |
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SFF-8020i |
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SFF-8070i |
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MMC-2 (ATAPI) |
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Supports multiple LUNs |
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A file system is required to operate the mass storage class (PrFILE2 is recommended). |
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Other class drivers will be supported in the near future. |
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| PrUSB/Host is written in C language and is not dependent on the particular CPU. Host controller drivers and OS-dependent code are separated from PrUSB/Host to ensure high portability. |
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| Compatibility with T-Engine and T-Kernel |
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| PrUSB/Host is compatible with T-Engine and T-Kernel. |
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| PrUSB/Host is available in source code. |
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| Maintenance service and customization service |
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| The following maintenance service is available for PrUSB/Host. |
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Email response regarding the product |
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Minor version upgrades |
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| eSOL also offers customization service to tailor PrUSB/Host to a different environment, such as original hardware. |
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| PrUSB/Host architecture diagram |
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| PrUSB/Host operates in the following environments: |
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| Host controller: |
UHCI/OHCI/EHCI |
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Controller with TMS320DM35x (manufactured by TI) |
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Controller with TMS320DM644x (manufactured by TI) |
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Controller with SH7727 (manufactured by Renesas Technology) |
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S1R72V05 (manufactured by Seiko Epson) |
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µPD720101 (manufactured by NEC Electronics) |
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Controller with VR5500 (manufactured by NEC Electronics) |
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| An OS is required to operate PrUSB/Host (PrKERNELv4 is recommended). Contact us for details on appropriate OSes or development environments. |
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Options and related products |
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| Optional product: class driver |
Mass Storage Class
Communication Device Class
Audio Class
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Other class drivers will be supported in the near future. |
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| Related products |
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USB device protocol stack |
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SDK for PictBridge |
| *A printing device will be supported soon. |
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Click here for more information. |
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Click here for information on customization or contract development. |
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