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print errno when parport fails to open. 

git-svn-id: svn://svn.berlios.de/openocd/trunk@2529 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe 2009-07-15 12:30:06 +00:00
parent e76fe13a95
commit 2ff59c9aaf
1 changed files with 3 additions and 2 deletions
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5
src/jtag/parport.c
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@ -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 ‘/dev/parport’ device");
COMMAND_CONFIG, "either the address of the I/O port or the number of the <EFBFBD>/dev/parport<72> 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;
}