最終更新:2022-04-25 (月) 16:01:43 (722d)  

rfcomm
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RFCOMM configuration utility

Bluetoothデバイス間のRFCOMM接続が可能になります

https://linux.die.net/man/1/rfcomm

概要

  • rfcomm is used to set up, maintain, and inspect the RFCOMM configuration of the Bluetooth subsystem in the Linux kernel.
  • If no command is given, or if the option -a is used, rfcomm prints information about the configured RFCOMM devices.
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チャンネル

  • rfcomm におけるチャネル番号は 1～30
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ソースコード

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例 

  • sudo rfcomm listen /dev/rfcomm0 22
sudo sdptool add --channel=22 SP
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コマンド

  • rfcomm listen <dev> [channel] [cmd]Listen on a specified RFCOMM channel for incoming connections.
    rfcomm watch <dev> [channel] [cmd]Watch is identical to listen except that when the child process terminates or the client disconnect, the command will restart listening with the same parameters.
    rfcomm connect
    rfcomm show? <dev>Display the information about the specified device.
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rfcomm -a?

  • Prints information about all configured RFCOMM devices. 
    rfcomm0: 00:00:00:00:00:00 -> 00:00:00:00:00:00 channel 1 connected [reuse-dlc release-on-hup tty-attached]
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メモ

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help 

  • RFCOMM configuration utility ver 5.48
Usage:
	rfcomm [options] <command> <dev>

Options:
	-i, --device [hciX|bdaddr]     Local HCI device or BD Address
	-h, --help                     Display help
	-r, --raw                      Switch TTY into raw mode
	-A, --auth                     Enable authentication
	-E, --encrypt                  Enable encryption
	-S, --secure                   Secure connection
	-M, --master                   Become the master of a piconet
	-L, --linger [seconds]         Set linger timeout
	-a                             Show all devices (default)

Commands:
	bind     <dev> <bdaddr> [channel]	Bind device
	release  <dev>                   	Release device
	show     <dev>                   	Show device
	connect  <dev> <bdaddr> [channel]	Connect device
	listen   <dev> [channel [cmd]]   	Listen
	watch    <dev> [channel [cmd]]   	Watch



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