From e18fab1746c2da60f9bd22bd865604d7b7efb8b7 Mon Sep 17 00:00:00 2001
From: Ben Aranguren <ben@taranawireless.com>
Date: Fri, 5 Jun 2020 15:31:07 -0700
Subject: [PATCH] termio: Set character width to 8 bits

When setting terminal mode, the character size is getting cleared and
defaults to CS5 which causes the display to be garbled.  Since the
purpose of this libaray is to mainly output readable characters, CS8 is
a better value.

This can be easily seen when launching go-prompt over serial connection.

Bug: #179
Change-Id: I4c9d13fad699e09aa9f4f665b252cebdd63614a7
---
 internal/term/raw.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/internal/term/raw.go b/internal/term/raw.go
index 5f6f133..4ee9fc1 100644
--- a/internal/term/raw.go
+++ b/internal/term/raw.go
@@ -20,7 +20,9 @@ func SetRaw(fd int) error {
 		syscall.ICRNL | syscall.IXON
 	n.Lflag &^= syscall.ECHO | syscall.ICANON | syscall.IEXTEN | syscall.ISIG | syscall.ECHONL
 	n.Cflag &^= syscall.CSIZE | syscall.PARENB
+	n.Cflag |= syscall.CS8 // Set to 8-bit wide.  Typical value for displaying characters.
 	n.Cc[syscall.VMIN] = 1
 	n.Cc[syscall.VTIME] = 0
+
 	return termios.Tcsetattr(uintptr(fd), termios.TCSANOW, (*syscall.Termios)(&n))
 }