83Plus:Software:usb8x/Asm Interface/Pad/PadInit

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Synopsis

Name: PadInit

Minimum usb8x version: 0.11

Initialize the gamepad driver and hardware

Inputs

  • HL: Address of buffer for gamepad driver's RAM storage
  • DE: Address of temporary buffer for descriptors

Outputs

  • NC: Success

Destroys

  • AF, BC, DE, HL, IX

Notes

Initializes the USB host but assumes the USB driver has already been initialized with [[../../DriverInit|DriverInit]].

Use [[../PadVersion|PadVersion]] to find the exact amount of memory required for the gamepad driver's RAM, or just use 32 bytes as a safe static value.

The callback you specified during U_CALL_INIT will be used if you're using the U_CALL system. Otherwise specifiy the callback in register IX.

See Also

  • [[../PadSetup|PadSetup]] - Get offsets and masks for button mappings
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