jakeler / ddc-tray Goto Github PK

From ddcutil types header:

Most public ddcutil functions return a status code.
These status codes have 3 sources:

• Linux
• ADL (AMD Display Library)
• ddcutil itself

These multiple status code sources are consolidated by "modulating"
the raw values into non-overlapping ranges.

• Linux errno values are returned as negative numbers (e.g. -EIO)
• ADL values are modulated by 2000 (i.e., 2000 subtracted from negative ADL status codes,
  or added to positive ADL status codes)
• ddcutil errors are always in the -3000 range

In summary:

• 0 always indicates a normal successful status
• Positive values (possible with ADL) represent qualified success of some sort
• Negative values indicate an error condition.

for ddc errors see ddcutil_status_codes.h

• monitorcontrol: can't get capabilities or brightness, multiple errors
• python-ddcci: works only for Acer mon, no EDID parsing or detection
  maybe edid with pyedid and smbus reading possible, but not reliable... detection is try and error?
• ddcutil: reliable, all features. C lib needs some bindings with CFFI or Swig? or write in actual C++? or Rust with C bindings?

Based on location sunset

• select library, same as autoled?
• menu toggle switch
• main window settings: lat/long, min/max brightness, transition