From b5d3c6567285b6c860734382c6383a5011983a33 Mon Sep 17 00:00:00 2001
From: Yao Wei <mwei@lxde.org>
Date: Wed, 24 Sep 2014 15:40:21 +0800
Subject: [PATCH] Add 0x7f as backspace key in shell

---
 sys/shell/shell.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/shell/shell.c b/sys/shell/shell.c
index 6cc07e9630..528a4275ed 100644
--- a/sys/shell/shell.c
+++ b/sys/shell/shell.c
@@ -236,7 +236,8 @@ static int readline(shell_t *shell, char *buf, size_t size)
             shell->put_char('\n');
             return 0;
         }
-        else if (c == '\b') {
+        /* QEMU uses 0x7f (DEL) as backspace, while 0x08 (BS) is for most terminals */
+        else if (c == 0x08 || c == 0x7f) {
             if (line_buf_ptr == buf) {
                 /* The line is empty. */
                 continue;