我用wireshark拍到了一个URB包:
219774 438.775555000 host 31.0 USBVIDEO 66 SET CUR Request [Brightness]
Wireshark显示以下偏移十六进制文本:
^{pr2}$现在,我尝试使用PyUSB按以下方式重放此数据包:\
device = usb.core.find(idVendor=0x04f2, idProduct=0xb2ea)
device.detach_kernel_driver(0)
cfg = device.get_active_configuration()
intf = cfg[(0,0)]
ep = intf[0]
data = 'c03998300288ffff5302000401000000d78f51530000000084ad08008dffffff02000000020000002101000200020200000000000000000000000000000000003200'
data = [ int(''.join([data[i], data[i+1]]), base=16) for i in range(0, len(data), 2)]
print '%d/%d written' %(ep.write(object_to_write), len(object_to_write))
哪些输出:
11/66 written
这让我觉得我不明白pyusb为数据准备了多少元数据,wireshark省略了多少元数据等等,有什么想法可以解决这个问题吗?在
目前没有回答
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