+Sub-command definition
+----------------------
+
+Likewise an array of cmd_tbl_t holding sub-commands can be created using either
+of the following macros:
+
+* U_BOOT_CMD_MKENT(name, maxargs, repeatable, command, "usage", "help")
+* U_BOOT_CMD_MKENTCOMPLETE(name, maxargs, repeatable, command, "usage, "help",
+ comp)
+
+This table has to be evaluated in the command function of the main command, e.g.
+
+ static cmd_tbl_t cmd_sub[] = {
+ U_BOOT_CMD_MKENT(foo, CONFIG_SYS_MAXARGS, 1, do_foo, "", ""),
+ U_BOOT_CMD_MKENT(bar, CONFIG_SYS_MAXARGS, 1, do_bar, "", ""),
+ };
+
+ static int do_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+ {
+ cmd_tbl_t *cp;
+
+ if (argc < 2)
+ return CMD_RET_USAGE;
+
+ /* drop sub-command argument */
+ argc--;
+ argv++;
+
+ cp = find_cmd_tbl(argv[0], cmd_ut_sub, ARRAY_SIZE(cmd_sub));
+
+ if (cp)
+ return cp->cmd(cmdtp, flag, argc, argv);
+
+ return CMD_RET_USAGE;
+ }
+