Allocate 0x837C-0x837D for TEILE Elektronik MIB GmbH DSP#321
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Spritetm merged 1 commit intoJun 2, 2026
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Two PIDs for a single ESP32-P4 based DSP product with two USB boot modes: - 0x837C: UAC2.0 audio composite + custom DFU/RPC interface - 0x837D: vendor-specific remote-control interface (alternative mode) The host distinguishes the active mode by PID. A custom PID is needed because the vendor-specific interface uses a non-standard host driver rather than the default TinyUSB class PIDs.
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Looks good, merged! |
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Device description
A digital signal processor (DSP) audio product. It exposes two USB personalities selected by its boot mode, and the host recognizes which mode is active by the PID:
Chip
ESP32-P4 (using its native USB interface).
Why a custom PID is needed
The vendor-specific remote-control protocol uses a non-standard host driver rather than the default TinyUSB class drivers, so the pre-allocated TinyUSB PIDs don't apply. Two PIDs are required because the product has two distinct boot modes presenting different USB descriptors, and the host distinguishes them by PID.
Company
TEILE Elektronik MIB GmbH. This is a proprietary product.