xiaoxiang781216 commented on a change in pull request #521:
URL:
https://github.com/apache/incubator-nuttx-apps/pull/521#discussion_r542368040
##########
File path: nshlib/nsh_usbconsole.c
##########
@@ -88,15 +88,16 @@ static void nsh_configstdio(int fd, FAR struct
console_stdio_s *pstate)
dup2(fd, 1);
dup2(fd, 2);
- /* Setup the stdout */
-
- pstate->cn_outfd = 1;
- pstate->cn_outstream = fdopen(1, "a");
-
- /* Setup the stderr */
+ /* fdopen to get the stdin, stdout and stderr streams.
+ *
+ * fd = 0 is stdin (read-only)
+ * fd = 1 is stdout (write-only, append)
+ * fd = 2 is stderr (write-only, append)
+ */
- pstate->cn_errfd = 2;
- pstate->cn_errstream = fdopen(2, "a");
+ fdopen(0, "r");
+ fdopen(1, "a");
+ fdopen(2, "a");
Review comment:
but dev/null or dev/zero may disable too.
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