shell: mufs: use a temporary hack to get unbuffered input from the serial interface

source/shell/mufs.c

@@ -17,6 +17,8 @@
 extern struct flash_dev *flash;
 struct mufs *mufs = NULL;
 
+extern struct usart_console *admin_con;
+
 static void do_mufs_mount(FILE *out, const char **argv, size_t argc)
 {
 	(void)argc;
@@ -190,7 +192,7 @@ static void do_mufs_write(FILE *out, const char **argv, size_t argc)
 
 	fprintf(out, "> ");
 
-	while ((ret = fread(data, sizeof *data, sizeof data, out)) > 0) {
+	while ((ret = console_read(admin_con, data, sizeof data)) > 0) {
 		mufs_write(file, data, ret);
 		fprintf(out, "> ");
 	}