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-rw-r--r--src/jtag/ft2232.c10
-rw-r--r--src/jtag/jtag.c2
-rw-r--r--src/jtag/parport.c6
3 files changed, 9 insertions, 9 deletions
diff --git a/src/jtag/ft2232.c b/src/jtag/ft2232.c
index 6754d9aa..47376241 100644
--- a/src/jtag/ft2232.c
+++ b/src/jtag/ft2232.c
@@ -316,15 +316,15 @@ int ft2232_khz(int khz, int *jtag_speed)
int ft2232_register_commands(struct command_context_s *cmd_ctx)
{
register_command(cmd_ctx, NULL, "ft2232_device_desc", ft2232_handle_device_desc_command,
- COMMAND_CONFIG, NULL);
+ COMMAND_CONFIG, "the USB device description of the FTDI FT2232 device");
register_command(cmd_ctx, NULL, "ft2232_serial", ft2232_handle_serial_command,
- COMMAND_CONFIG, NULL);
+ COMMAND_CONFIG, "the serial number of the FTDI FT2232 device");
register_command(cmd_ctx, NULL, "ft2232_layout", ft2232_handle_layout_command,
- COMMAND_CONFIG, NULL);
+ COMMAND_CONFIG, "the layout of the FT2232 GPIO signals used to control output-enables and reset signals");
register_command(cmd_ctx, NULL, "ft2232_vid_pid", ft2232_handle_vid_pid_command,
- COMMAND_CONFIG, NULL);
+ COMMAND_CONFIG, "the vendor ID and product ID of the FTDI FT2232 device");
register_command(cmd_ctx, NULL, "ft2232_latency", ft2232_handle_latency_command,
- COMMAND_CONFIG, NULL);
+ COMMAND_CONFIG, "set the FT2232 latency timer to a new value");
return ERROR_OK;
}
diff --git a/src/jtag/jtag.c b/src/jtag/jtag.c
index 0af99f93..f2846d3e 100644
--- a/src/jtag/jtag.c
+++ b/src/jtag/jtag.c
@@ -1555,7 +1555,7 @@ int jtag_register_commands(struct command_context_s *cmd_ctx)
register_jim( cmd_ctx, "jtag", jim_jtag_command, "perform jtag tap actions");
register_command(cmd_ctx, NULL, "interface", handle_interface_command,
- COMMAND_CONFIG, NULL);
+ COMMAND_CONFIG, "try to configure interface");
register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
COMMAND_ANY, "set jtag speed (if supported)");
register_command(cmd_ctx, NULL, "jtag_khz", handle_jtag_khz_command,
diff --git a/src/jtag/parport.c b/src/jtag/parport.c
index 0cfbd81f..13f04904 100644
--- a/src/jtag/parport.c
+++ b/src/jtag/parport.c
@@ -268,11 +268,11 @@ int parport_speed(int speed)
int parport_register_commands(struct command_context_s *cmd_ctx)
{
register_command(cmd_ctx, NULL, "parport_port", parport_handle_parport_port_command,
- COMMAND_CONFIG, NULL);
+ COMMAND_CONFIG, "either the address of the I/O port or the number of the ‘/dev/parport’ device");
register_command(cmd_ctx, NULL, "parport_cable", parport_handle_parport_cable_command,
- COMMAND_CONFIG, NULL);
+ COMMAND_CONFIG, "the layout of the parallel port cable used to connect to the target");
register_command(cmd_ctx, NULL, "parport_write_on_exit", parport_handle_write_on_exit_command,
- COMMAND_CONFIG, NULL);
+ COMMAND_CONFIG, "configure the parallel driver to write a known value to the parallel interface");
return ERROR_OK;
}