root@slackbox:/usr/src/linux# i2cdetect -l
i2c-4   i2c             ivtv i2c driver #0                      Algorithm unavailable
i2c-3   i2c             crt2                                    Algorithm unavailable
i2c-2   i2c             vga                                     Algorithm unavailable
i2c-1   i2c             dvi                                     Algorithm unavailable
i2c-0   i2c             monid                                   Algorithm unavailable


root@slackbox:/dev/i2c# i2cdetect -a 4
WARNING! This program can confuse your I2C bus, cause data loss and worse!
I will probe file /dev/i2c/4.
I will probe address range 0x00-0x7f.
Continue? [Y/n] y
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