| Previous | Next |
| STATUS_GPIO_VERSION_NOT_SUPPORTED | STATUS_GPIO_OPERATION_DENIED |
STATUS_GPIO_INVALID_REGISTRATION_PACKET
The GpioClx registration packet failed structural validation
GPIO_CLIENT_REGISTRATION_PACKET is the entry contract between a controller driver and GpioClx. It carries versioned registration data and callback pointers used for controller preparation, pin I/O, interrupts, and power transitions. This status means the packet itself cannot be accepted.
A zeroed packet with only a few fields assigned is not necessarily valid; the driver must initialize the expected version, size, and callback set. Stack lifetime errors, wrong architecture packing, use of an obsolete header definition, or assigning incompatible callback variants can make a packet look invalid even when individual functions are implemented.
What to inspect
- Log packet size, version, flags, callback addresses, and the exact GPIO_CLX_RegisterClient return.
- Verify the packet remains valid for the duration required by the registration call.
- Compare every required field with the WDK definition and the simulated GPIO sample.
- Check compiler packing and that the driver and headers target the same architecture and WDK contract.
References
- Microsoft Open Specifications: NTSTATUS values
- Microsoft: GPIO_CLIENT_REGISTRATION_PACKET
- Microsoft: GpioClx DDI
- Microsoft driver samples: GPIO controllers and clients
Looking for a different code? Search another status or error code.