如果每个设备都需要20 is才能服务,而UpdateLCD()则需要10 is才能执行,那么最坏的情况响应时间是多少?Handle Device D }由于总共有4个设备(A、B、C、D),如果在设备A维修之后,设备A需要维修,最坏的情况响应时间应该是20+20+20+10 =70 of (假设设备B、C和D也需要维修)。
[ 48.008575] usb 4-3: >Device not responding to set address.[ 48.212421] usb 4-3: >device not accepting address 9, error -71
[ 48.324451] usb 4-3: >Device[ 48.528340] usb 4-3: >Device not responding to set address.[ 48.732165] usb 4-3</e