Converts callback to an array of command_registration records.
Moves oocd_trace driver definition to end of file to eliminate
useless forward declaration.
        COMMAND_REGISTRATION_DONE
 };
 
-static int etb_register_commands(struct command_context *cmd_ctx)
-{
-       return register_commands(cmd_ctx, NULL, etb_command_handlers);
-}
-
 static int etb_init(struct etm_context *etm_ctx)
 {
        struct etb *etb = etm_ctx->capture_driver_priv;
 struct etm_capture_driver etb_capture_driver =
 {
        .name = "etb",
-       .register_commands = etb_register_commands,
+       .commands = etb_command_handlers,
        .init = etb_init,
        .status = etb_status,
        .start_capture = etb_start_capture,
 
        {
                if (strcmp(CMD_ARGV[4], etm_capture_drivers[i]->name) == 0)
                {
-                       int retval;
-                       if ((retval = etm_capture_drivers[i]->register_commands(CMD_CTX)) != ERROR_OK)
+                       int retval = register_commands(CMD_CTX, NULL,
+                                       etm_capture_drivers[i]->commands);
+                       if (ERROR_OK != retval)
                        {
                                free(etm_ctx);
                                return retval;
 
 struct etm_capture_driver
 {
        char *name;
-       int (*register_commands)(struct command_context *cmd_ctx);
+       const struct command_registration *commands;
        int (*init)(struct etm_context *etm_ctx);
        trace_status_t (*status)(struct etm_context *etm_ctx);
        int (*read_trace)(struct etm_context *etm_ctx);
 
        COMMAND_REGISTRATION_DONE
 };
 
-static int etm_dummy_register_commands(struct command_context *cmd_ctx)
-{
-       return register_commands(cmd_ctx, NULL, etm_dummy_command_handlers);
-}
-
 static int etm_dummy_init(struct etm_context *etm_ctx)
 {
        return ERROR_OK;
 struct etm_capture_driver etm_dummy_capture_driver =
 {
        .name = "dummy",
-       .register_commands = etm_dummy_register_commands,
+       .commands = etm_dummy_command_handlers,
        .init = etm_dummy_init,
        .status = etm_dummy_status,
        .start_capture = etm_dummy_start_capture,
 
  */
 
 
-static int oocd_trace_register_commands(struct command_context *cmd_ctx);
-
 static int oocd_trace_read_reg(struct oocd_trace *oocd_trace, int reg, uint32_t *value)
 {
        size_t bytes_written, bytes_read, bytes_to_read;
        return ERROR_OK;
 }
 
-struct etm_capture_driver oocd_trace_capture_driver =
-{
-       .name = "oocd_trace",
-       .register_commands = oocd_trace_register_commands,
-       .init = oocd_trace_init,
-       .status = oocd_trace_status,
-       .start_capture = oocd_trace_start_capture,
-       .stop_capture = oocd_trace_stop_capture,
-       .read_trace = oocd_trace_read_trace,
-};
-
 COMMAND_HANDLER(handle_oocd_trace_config_command)
 {
        struct target *target;
        COMMAND_REGISTRATION_DONE
 };
 
-int oocd_trace_register_commands(struct command_context *cmd_ctx)
+struct etm_capture_driver oocd_trace_capture_driver =
 {
-       return register_commands(cmd_ctx, NULL, oocd_trace_command_handlers);
-}
+       .name = "oocd_trace",
+       .commands = oocd_trace_command_handlers,
+       .init = oocd_trace_init,
+       .status = oocd_trace_status,
+       .start_capture = oocd_trace_start_capture,
+       .stop_capture = oocd_trace_stop_capture,
+       .read_trace = oocd_trace_read_trace,
+};
+
+