/* * Command. 16 bits at offset 2 (e.g. upper 16 bits of the first 32-bit * word at the capability; the lower 16 bits are the capability ID and * next capability pointer). * * Since we always read PCI config space in 32-bit words, we define these * as 32-bit values, offset and shifted appropriately. Make sure you perform * the appropriate R/M/W cycles! */