diff options
| author |   mbalmer <mbalmer@openbsd.org> | 2008-06-11 20:07:31 +0000 |
|---|---|---|
| committer | mbalmer <mbalmer@openbsd.org> | 2008-06-11 20:07:31 +0000 |
| commit | 729569a711924315e034f85a8dbeb4d46a0b14bc (patch) | |
| tree | d4b124a87331b466fe45bdd374a58e5267249328 /lib/libm/src/k_rem_pio2.c | |
| parent | regen (diff) | |
| download | wireguard-openbsd-729569a711924315e034f85a8dbeb4d46a0b14bc.tar.xz wireguard-openbsd-729569a711924315e034f85a8dbeb4d46a0b14bc.zip | |
When reading a GPIO pin, first determine if it is programmed for input
or output and then read the value from either the GPIO[x]_READ_BACK or
GPIO[x]_OUT_VAL register. This allows to read back LED (output) states
as well as input states (buttons).
Problem noticed by Rolf Sommerhalder, fix by me.
Diffstat (limited to 'lib/libm/src/k_rem_pio2.c')
0 files changed, 0 insertions, 0 deletions