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Re: Sending USB commands with Python

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From Dennis Lee Bieber <wlfraed@ix.netcom.com>
Subject Re: Sending USB commands with Python
Date Tue, 28 Aug 2012 22:54:08 -0400
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On Tue, 28 Aug 2012 17:04:49 -0700 (PDT), "Adam W."
<AWasilenko@gmail.com> declaimed the following in
gmane.comp.python.general:

> So I'm trying to get as low level as I can with my Dymo label printer, and this method described the PDF http://sites.dymo.com/Documents/LW450_Series_Technical_Reference.pdf seems to be it.
> 
> I'm unfamiliar with dealing with the USB interface and would greatly appreciate it if someone could tell me how to send and receive these commands with Python.  Perhaps if you were feeling generous and wanted to write a bit of sample code, sending the "Get Printer Status" command and receiving the response (page 17 of the PDF) would be perfect to get me on my way.
> 

1)		what OS?

2)		does the printer appear as a serial port by the OS? Or as a
printer device?

	If it appears as a serial port, you may want to obtain the pyserial
(or whatever the name is this year) package. For USB, you may need one
of the variant USB packages (pywinusb, pyusb, etc.) With luck you won't
need to use admin privileges to access the port as a raw device vs
having to go through an OS driver...


-- 
	Wulfraed                 Dennis Lee Bieber         AF6VN
        wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/

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Thread

Sending USB commands with Python "Adam W." <AWasilenko@gmail.com> - 2012-08-28 17:04 -0700
  Re: Sending USB commands with Python Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-08-28 22:54 -0400
    Re: Sending USB commands with Python hamilton <hamilton@nothere.com> - 2012-08-28 21:03 -0600
      Re: Sending USB commands with Python alex23 <wuwei23@gmail.com> - 2012-08-28 22:04 -0700
        Re: Sending USB commands with Python hamilton <hamilton@nothere.com> - 2012-08-28 23:18 -0600
  Re: Sending USB commands with Python Tim Roberts <timr@probo.com> - 2012-08-28 23:45 -0700
    Re: Sending USB commands with Python Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-08-29 16:09 -0400
      Re: Sending USB commands with Python "Adam W." <AWasilenko@gmail.com> - 2012-08-29 14:21 -0700
        Re: Sending USB commands with Python Tim Roberts <timr@probo.com> - 2012-08-30 20:55 -0700
      Re: Sending USB commands with Python Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-08-29 17:57 -0400

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