CLI example in a single commit #32
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Sorry if sidetracking. Is this check suggested for users of this library? I have been relying on |
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in BSD gpio mapped to a different place (as far as i understand to |
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| } | ||
| } else { | ||
| switch *set { | ||
| case 1: |
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If *set is String and not Int, you can check for multiple choices, eg.: case: "0", "L", "low": and case: "1", "H", "high":
| pinNumber = flag.Int("p", 0, " number of pin to use") | ||
| high = flag.Bool("h", false, " return 0 if value is HIGH, omit to set value") | ||
| low = flag.Bool("l", false, " return 0 if value is LOW, omit to set value") | ||
| set = flag.Int("s", 0, " set pin value to high(1) or low(-1)") |
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It would make more sense to name this option v as value instead of s as set.
Also use 0 for low value makes more sense to me, than -1.
You can parse this as String instead of Int, to avoid issue with third unset value (empty string).
| flag.Parse() | ||
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| if os.Geteuid() != 0 { | ||
| fmt.Println("This program have to be run as root, or SUID/GUID set to 0 on execution!") |
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It actually does not have to be run as root, if /dev/gpiomem exists.
| } | ||
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| if runtime.GOARCH != "arm" { | ||
| fmt.Println("This program can be unpredictable on other machines rather than Raspberry Pi") |
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other machines
ratherthan Raspberry Pi
;)
Just a replacement for PR #5 in a single commit