armhf support

[amm385]

I found a .so library supposedly supporting armhf here: http://www.touptek.com/download/showdownload.php?lang=en&id=32
but am currently unable to get things working completely.

Specifically, the Toupcam_StartPullModeWithCallback function is returning a non-zero value and Toupcam_PullImage is returning an array of zeroes. Other simple functions are also returning non-zero response codes (e.g. Toupcam_get_HwVersion, Toupcam_get_SerialNumber). Relevant code below.

Unsure given the lack of error if this is user error on my part or some more legitimate bug, however

# Camera Initialization
class HToupCam(ctypes.Structure):
    _fields_ = [('unused', ctypes.c_int)]
...
func = lib.Toupcam_OpenByIndex
func.restype = ctypes.POINTER(HToupCam)
cam = func(index)

# Start Pull Mode
CB = ctypes.CFUNCTYPE(None, ctypes.c_uint, ctypes.c_void_p)
def dummy_fn():
    return True
frame_fn = CB(dummy_fn)
result = lib.Toupcam_StartPullModeWithCallback(cam, frame_fn)
# result = -2147467259

[jirhiker]

Have you looked at https://github.com/NMGRL/toupcam/blob/master/camera.py to see how Ive been using
Toupcam_StartPullModeWithCallback, Toupcam_get_HwVersion, Toupcam_get_SerialNumber.

for the most part your code looks correct. Id stick with trying to get Toupcam_get_HwVersion, Toupcam_get_SerialNumber to return correct results before moving on to getting the image data.

[amm385]

Yep, that's where I've been getting the inspiration for my code from. Unfortunately I opted to just go with a different camera so sent my camera back in the mail today and won't be able to debug further :/