Commands are added to U-Boot by creating a new command structure.
This is done by first including command.h, then using the U_BOOT_CMD() or the
-U_BOOT_CMD_COMPLETE macro to fill in a cmd_tbl_t struct.
+U_BOOT_CMD_COMPLETE macro to fill in a struct cmd_tbl struct.
U_BOOT_CMD(name, maxargs, repeatable, command, "usage", "help")
U_BOOT_CMD_COMPLETE(name, maxargs, repeatable, command, "usage, "help", comp)
Sub-command definition
----------------------
-Likewise an array of cmd_tbl_t holding sub-commands can be created using either
+Likewise an array of struct cmd_tbl holding sub-commands can be created using either
of the following macros:
* U_BOOT_CMD_MKENT(name, maxargs, repeatable, command, "usage", "help")
This table has to be evaluated in the command function of the main command, e.g.
- static cmd_tbl_t cmd_sub[] = {
+ static struct cmd_tbl 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[])
+ static int do_cmd(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
- cmd_tbl_t *cp;
+ struct cmd_tbl *cp;
if (argc < 2)
return CMD_RET_USAGE;
Command function
----------------
-The commmand function pointer has to be of type
-int (*cmd)(struct cmd_tbl_s *cmdtp, int flag, int argc, const char *argv[]);
+The command function pointer has to be of type
+int (*cmd)(struct cmd_tbl *cmdtp, int flag, int argc, const char *argv[]);
cmdtp: Table entry describing the command (see above).
Allowable return value are:
-CMD_SUCCESS The command was successfully executed.
+CMD_RET_SUCCESS The command was successfully executed.
-CMD_FAILURE The command failed.
+CMD_RET_FAILURE The command failed.
CMD_RET_USAGE The command was called with invalid parameters. This value
leads to the display of the usage string.