print errno when parport fails to open.

git-svn-id: svn://svn.berlios.de/openocd/trunk@2529 b42882b7-edfa-0310-969c-e2dbd0fdcd60

diff --git a/src/jtag/parport.c b/src/jtag/parport.c
index b752796994bd2a504a9145266f9a3910e5ce9078..aee96a30d21546659c7c4b97758a70deab257edb 100644 (file)
--- a/src/jtag/parport.c
+++ b/src/jtag/parport.c
@@ -247,7 +247,7 @@ static int parport_speed(int speed)
 static int parport_register_commands(struct command_context_s *cmd_ctx)
 {
        register_command(cmd_ctx, NULL, "parport_port", parport_handle_parport_port_command,
-               COMMAND_CONFIG, "either the address of the I/O port or the number of the \91/dev/parport\92 device");
+               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, "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,
@@ -337,7 +337,8 @@ static int parport_init(void)
 
        if (device_handle < 0)
        {
-               LOG_ERROR("cannot open device. check it exists and that user read and write rights are set");
+               int err = errno;
+               LOG_ERROR("cannot open device. check it exists and that user read and write rights are set. errno=%d", err);
                return ERROR_JTAG_INIT_FAILED;
        }