def handoff_to_os():
"""Perform USB handoff to OS (i.e. disable USB devices)"""
print """
WARNING: This test asks the BIOS to stop handling USB, so if you use a
USB keyboard, you will probably lose the ability to interact with BITS
after this test completes.
You can view the results, and then reboot.
Press escape to quit, or any other key to continue."""
c = bits.get_key()
if c == bits.KEY_ESC:
print 'Test aborted!'
return False
ret = False
for dev in pci.devices_by_classcode(CLASSC_EHCI):
if ehci_handoff_to_os(**dev):
ret = True
return ret
def handoff_to_os():
"""Perform USB handoff to OS (i.e. disable USB devices)"""
print """
WARNING: This test asks the BIOS to stop handling USB, so if you use a
USB keyboard, you will probably lose the ability to interact with BITS
after this test completes.
You can view the results, and then reboot.
Press escape to quit, or any other key to continue."""
k = bits.input.get_key()
if k.key == bits.input.KEY_ESC:
print 'Test aborted!'
return False
ret = False
for dev in pci.devices_by_classcode(CLASSC_EHCI):
if ehci_handoff_to_os(**dev):
ret = True
return ret
def find_hc():
for name, classc in ("UHCI", CLASSC_UHCI), ("OHCI", CLASSC_OHCI), (
"EHCI", CLASSC_EHCI), ("XHCI", CLASSC_XHCI):
for dev in pci.devices_by_classcode(classc):
print "{name} device found at {bus:#x}:{dev:#x}.{fun:#x}".format(
name=name, **dev)
def find_hc():
for name, classc in ("UHCI", CLASSC_UHCI), ("OHCI", CLASSC_OHCI), ("EHCI", CLASSC_EHCI), ("XHCI", CLASSC_XHCI):
for dev in pci.devices_by_classcode(classc):
print "{name} device found at {bus:#x}:{dev:#x}.{fun:#x}".format(name=name, **dev)