/ # hexdump /sys/bus/w1/devices/30-000010415807/w1_slave
drivers/w1/w1_samcop.c:samcop_w1_reset_bus - enter
drivers/w1/w1_samcop.c:samcop_w1_reset_bus - leave
drivers/w1/w1_samcop.c:samcop_w1_read_block - enter
drivers/w1/w1_samcop.c:samcop_w1_read_block - reading 128 bytes from 0x1F00001041580730
0000000 ffff ffff ffff ffff ffff ffff ffff ffffdrivers/w1/w1_samcop.c:samcop_w1_reset_bus - enter

*
drivers/w1/w1_samcop.c:samcop_w1_reset_bus - leave
drivers/w1/w1_samcop.c:samcop_w1_read_block - enter
drivers/w1/w1_samcop.c:samcop_w1_read_block - reading 128 bytes from 0x1F00001041580730
0000080
/ # hexdump /sys/bus/w1/devices/30-000010415807/w1_slave
drivers/w1/w1_samcop.c:samcop_w1_reset_bus - enter
drivers/w1/w1_samcop.c:samcop_w1_reset_bus - leave
drivers/w1/w1_samcop.c:samcop_w1_read_block - enter
drivers/w1/w1_samcop.c:samcop_w1_read_block - reading 128 bytes from 0xFFFFFFFFFFFFFFFF
0000000 ffff ffff ffff ffff ffff ffff ffff ffffdrivers/w1/w1_samcop.c:samcop_w1_reset_bus - enter

*
drivers/w1/w1_samcop.c:samcop_w1_reset_bus - leave
drivers/w1/w1_samcop.c:samcop_w1_read_block - enter
drivers/w1/w1_samcop.c:samcop_w1_read_block - reading 128 bytes from 0xFFFFFFFFFFFFFFFF
0000080