PCIM_CMD_PERRESPEN
if ((command & PCIM_CMD_PERRESPEN) == 0)
#ifndef PCIM_CMD_PERRESPEN
cmd |= PCIM_CMD_SEREN | PCIM_CMD_PERRESPEN |
val |= PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN |
command |= PCIM_CMD_PERRESPEN;
pci_write_config(self, PCIR_COMMAND, u | PCIM_CMD_PERRESPEN | PCIM_CMD_BUSMASTEREN | PCIM_CMD_MEMEN, 1);
pci_command |= PCIM_CMD_PERRESPEN;