Hi folks,
I was hoping to get a little snippet of code to help me query a USB
temperature sensor with Python. I have installed libusb-win32 (v1.12.2) and
pyusb (v0.4.2). I can sucessfully enumerate the device. Here's what it
looks like:
Device: \\.\libusb0-0008--0x1dfd-0x0002
Device class: 0
Device sub class: 0
Device protocol: 0
Max packet size: 8
idVendor: 7677 (0x1dfd)
idProduct: 2 (0x0002)
Device Version: 01.10
Configuration: 1
Total length: 41
selfPowered: 0
remoteWakeup: 0
maxPower: 200
Interface: 0
Alternate Setting: 0
Interface class: 3
Interface sub class: 0
Interface protocol: 0
Endpoint: 0x81L
Type: 3
Max packet size: 16
Interval: 10
Endpoint: 0x2L
Type: 3
Max packet size: 16
Interval: 10
I'm more used to working with serial ports than usb so I was hoping for a
very minimal amount of code to:
1. Instantiate the device
2. Write a string ("hello world")
3. Read the response
I have gotten as far as:
handle = dev.open()
handle.bulkWrite(0x81,"hello world")
but then get an error: invalid endpoint 0x81
I'm clearly missing some steps or doing something wrong. Any help would
be greatly appreciated.
Best Regards,
J.D.
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