HCR CLF BLF bit[3] OCR SOC The HcCommandStatus register is used by the Host Controller to receive commands issued by the Host Controller Driver, as well as reflecting the cur...
描述 格式 注释 描述 The short item format packs the item size, type, and tag into the first byte. The first byte may be followed by 0, 1, 2, or 4 optional data bytes depending on the...
There are four data transfer types defined in USB. Each type is optimized to match the service requirements between the client software and the USB device. The four types are:· In...