Prior to this change, x52cli assumed that the return code from the
handler was a standard error code, but negated. This is an incorrect
assumption as the libx52 API returns a `libx52_error_code` enum, which
is a positive integer.
This change fixes the printing of the error message to call
`libx52_strerror`, which translates it correctly. It also adds error
printing to any failure of `libx52_init`, as well as explicitly
specifying `LIBX52_SUCCESS` instead of `0`.
Addresses #19.
x52test by default expects to run with an attached X52 unit. Since the
primary goal of the program is to test the hardware, it has embedded
delays to allow the user to verify the individual LEDs, MFD, brightness,
etc.
However, the complete test takes about 6 minutes. When using the stub
libusb library, the goal is to capture the requests, not verify it
against the hardware. In this case, the delays serve no useful purpose.
This change adds a nodelay flag, which is controlled by the presence of
a `NO_DELAY` environment variable, or the `LD_PRELOAD` environment
variable. As long as either of these variables are present in the
environment block, there will be no delays in the test execution.
- libx52_init returns the libx52_device in an output parameter and
returns a libx52_error_code
- Make all functions return libx52_error_code
- Update package version to indicate incompatible API change
nirenjan
Lars Wendler