print errno when parport fails to open.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2529 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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@ -247,7 +247,7 @@ static int parport_speed(int speed)
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static int parport_register_commands(struct command_context_s *cmd_ctx)
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static int parport_register_commands(struct command_context_s *cmd_ctx)
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{
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{
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register_command(cmd_ctx, NULL, "parport_port", parport_handle_parport_port_command,
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register_command(cmd_ctx, NULL, "parport_port", parport_handle_parport_port_command,
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COMMAND_CONFIG, "either the address of the I/O port or the number of the ‘/dev/parport’ device");
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COMMAND_CONFIG, "either the address of the I/O port or the number of the <EFBFBD>/dev/parport<72> device");
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register_command(cmd_ctx, NULL, "parport_cable", parport_handle_parport_cable_command,
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register_command(cmd_ctx, NULL, "parport_cable", parport_handle_parport_cable_command,
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COMMAND_CONFIG, "the layout of the parallel port cable used to connect to the target");
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COMMAND_CONFIG, "the layout of the parallel port cable used to connect to the target");
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register_command(cmd_ctx, NULL, "parport_write_on_exit", parport_handle_write_on_exit_command,
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register_command(cmd_ctx, NULL, "parport_write_on_exit", parport_handle_write_on_exit_command,
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@ -337,7 +337,8 @@ static int parport_init(void)
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if (device_handle < 0)
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if (device_handle < 0)
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{
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{
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LOG_ERROR("cannot open device. check it exists and that user read and write rights are set");
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int err = errno;
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LOG_ERROR("cannot open device. check it exists and that user read and write rights are set. errno=%d", err);
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return ERROR_JTAG_INIT_FAILED;
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return ERROR_JTAG_INIT_FAILED;
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}
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}
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