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The PCI function 2 on ASIX AX99100 PCIe to Multi I/O Controller can be configured as a single-port parallel port controller. The subvendor id is 0x2000 when configured as parallel port. It supports IEEE-1284 EPP / ECP with its ECR on BAR1. Signed-off-by: Jiaqing Zhao <jiaqing.zhao@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lore.kernel.org/r/20230724083933.3173513-5-jiaqing.zhao@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>