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Added set_configuration method in libusb

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This commit is contained in:
Kovid Goyal 2007-01-16 19:57:23 +00:00
parent 8c566b877e
commit 94387a023f
1 changed files with 9 additions and 13 deletions
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22
src/libprs500/libusb.py
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@ -138,14 +138,6 @@ class Bus(Structure):
return ans
return property(doc=doc, fget=fget)
class NTStatus(Structure):
_fields_ = [\
('code', c_uint, 16),
('facility', c_uint, 13),
('c', c_uint, 1),
('sev', c_uint, 2)
]
class DeviceHandle(Structure):
_fields_ = [\
('fd', c_int), \
@ -160,6 +152,11 @@ class DeviceHandle(Structure):
def close(self):
""" Close this DeviceHandle """
_libusb.usb_close(byref(self))
def set_configuration(self, num):
ret = _libusb.usb_set_configuration(byref(self), num)
if ret < 0:
raise Error('Failed to set device configuration to: ' + num)
def claim_interface(self, num):
"""
@ -167,8 +164,7 @@ class DeviceHandle(Structure):
Must be called before doing anything witht the device.
"""
ret = _libusb.usb_claim_interface(byref(self), num)
if _iswindows:
return
if -ret == ENOMEM:
raise Error("Insufficient memory to claim interface")
elif -ret == EBUSY:
@ -203,7 +199,7 @@ class DeviceHandle(Structure):
rsize = _libusb.usb_control_msg(byref(self), rtype, request, \
value, index, byref(arr), \
size, timeout)
if rsize < size:
if rsize < size:
raise Error('Could not read ' + str(size) + ' bytes on the '\
'control bus. Read: ' + str(rsize) + ' bytes.')
return arr
@ -296,8 +292,8 @@ _libusb.usb_reset.restype = c_int
_libusb.usb_control_msg.restype = c_int
_libusb.usb_bulk_read.restype = c_int
_libusb.usb_bulk_write.restype = c_int
if _iswindows:
_libusb.usb_claim_interface.restype = NTStatus
_libusb.usb_set_configuration.argtypes = [POINTER(DeviceHandle), c_int]
_libusb.usb_set_configuration.restype = c_int
_libusb.usb_init()
def busses():