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48 lines
1.8 KiB
Markdown
48 lines
1.8 KiB
Markdown
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usbscale
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========
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**Usbscale** is a program that reads weight data from a USB scale. Compilation
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is very simple and should work on any system with libusb-1.0 and gcc.
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Installation
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------------
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You will need the development headers for **libusb-1.0**. Once you have that, you simply need to run `make` in the source directory.
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Usage
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-----
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Simply run `usbscale` and it will automatically report on the first USB scale
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that it finds. The weight will be output to `stdout`, while any diagnostic or
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error messages will be sent to `stderr`. An exit code of 0 means that a scale
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was found and a weight was successfully read. Any other error code indicates
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that a weight reading was unavailable.
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Adding support for more scales
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------------------------------
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By default, **usbscale** only supports a very limited number of USB scales. It
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does not search for just any USB scale, but only those listed in **scales.h**.
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To add support for another USB scale, it should be enough to add its vendor and
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product IDs to **scales.h**. In any case, you should contact me (see below) so
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that I can add your new scale to the main source code to benefit all users who
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may have the same scale.
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License
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-------
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The license for **usbscale** is the GPLv3, whose full text can be found in the
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file `COPYING`. This means that you can reproduce and redistribute this
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software, as long as you provide any and all modifications that you have made
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to the software available under the same license. Notably, you may not
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integrate this software into another product without making the whole product
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open source. This paragraph is not definitive; please read the license
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carefully.
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Additional licensing terms may be negotiable.
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Contact
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-------
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The best way to contact me is by sending mail to erjiang at indiana.edu.
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