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39 lines
1.0 KiB
Markdown
39 lines
1.0 KiB
Markdown
# Synaptics Prometheus
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## Introduction
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This plugin can flash the firmware on the Synaptics Prometheus fingerprint readers.
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## Firmware Format
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The daemon will decompress the cabinet archive and extract a firmware blob in
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an unspecified binary file format. The binary file has a vendor-specific header
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that is used when flashing the image.
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This plugin supports the following protocol ID:
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* com.synaptics.prometheus
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## GUID Generation
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These devices use the standard USB DeviceInstanceId values, e.g.
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* `USB\VID_06CB&PID_00A9&REV_0001`
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* `USB\VID_06CB&PID_00A9`
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* `USB\VID_06CB&PID_00A9-cfg`
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* `USB\VID_06CB&PID_00A9&CFG1_3483&CFG2_500`
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## Update Behavior
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The device usually presents in runtime mode, but on detach re-enumerates with
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the same USB PID in an unlocked mode. On attach the device again re-enumerates
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back to the runtime locked mode.
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## Vendor ID Security
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The vendor ID is set from the USB vendor, in this instance set to `USB:0x06CB`
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## External Interface Access
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This plugin requires read/write access to `/dev/bus/usb`.
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