All these are valid: `N100 M110`, `M110 N100`, `N101 M110 N100`.
tag
optional
description
values
N
false
Line number
tag
type
line
int
Hosts can use M110 to set the current line number in a print job. Each line number sent by a host must be one higher than the previous line number, or the firmware will ignore the line and send an error requesting a resend of the missing line. This is one technique Marlin uses to keep in sync with hosts.
