1TS_CALIBRATE(1)                      tslib                     TS_CALIBRATE(1)
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NAME

6       ts_calibrate  -  A  test  program  to  calibrate a touch screen used by
7       tslib.
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SYNOPSIS

11       ts_calibrate
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DESCRIPTION

15       ts_calibrate is used to manually configure tslib's linear filter  plug‐
16       in.  It  draws  crosshairs to the framebuffer to be touched by the user
17       and records expected vs. actual touch contact positions needed to apply
18       the  filter  and  provide  a desired touch user experience. It uses the
19       TSLIB_CALIBFILE environment variable to store it's values.
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22       -r, --rotate [value]
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24           Rotate the screen. value is 0 for 0 degree, 1 for 90 degrees  (CW),
25           2 for 180 degrees (upside down) and 3 for 270 degrees (CCW).
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ENVIRONMENT VARIABLES

28       see ts.conf (5)
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SEE ALSO

31       ts.conf (5), ts_test (1), ts_uinput (1)
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35                                                               TS_CALIBRATE(1)
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