diff options
| author | Jacob McDonnell <jacob@jacobmcdonnell.com> | 2026-04-26 16:38:00 -0400 |
|---|---|---|
| committer | Jacob McDonnell <jacob@jacobmcdonnell.com> | 2026-04-26 16:38:00 -0400 |
| commit | 97d5c458cfa039d857301e1ca7d5af3beb37131d (patch) | |
| tree | b460cd850d0537eb71806ba30358840377b27688 /static/inferno/man3/switch.3 | |
| parent | b89dc2331a50c63f8b33272a5c4c61ab98abdaa3 (diff) | |
build: Better Build System
Diffstat (limited to 'static/inferno/man3/switch.3')
| -rw-r--r-- | static/inferno/man3/switch.3 | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/static/inferno/man3/switch.3 b/static/inferno/man3/switch.3 new file mode 100644 index 00000000..4c74db66 --- /dev/null +++ b/static/inferno/man3/switch.3 @@ -0,0 +1,28 @@ +.TH SWITCH 3 MPC8xx +.SH NAME +switch \- hardware option switch +.SH SYNOPSYS +.nf +.B bind -a '#r' /dev + +.B /dev/switch +.fi +.SH DESCRIPTION +.PP +The switch device serves a one-level directory, +giving access to one read-only file, +.BR switch . +A read returns the value of the development board's +option switch (DS1), represented as a decimal number +from 0 to 15, representing four bits, +each corresponding to one of the four toggles. +Each toggle produces the value 0 when it +is set `ON' and 1 when it is off. +Toggle 1 corresponds to bit +.B 1<<3 +in the number, +toggle 2 corresponds to bit +.BR 1<<2 , +and so on +.SH SOURCE +.B /os/mpc/devrtc.c |