gistfile1.txt

$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: sit0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN group default qlen 1
    link/sit 0.0.0.0 brd 0.0.0.0
3: ip6tnl0@NONE: <NOARP> mtu 1452 qdisc noop state DOWN group default qlen 1
    link/tunnel6 :: brd ::
4: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 92:a5:98:0e:9e:02 brd ff:ff:ff:ff:ff:ff
    inet 192.168.178.54/24 brd 192.168.178.255 scope global dynamic noprefixroute eth0
       valid_lft 3198sec preferred_lft 2748sec
    inet6 2a02:a212:2200:4c00:ed8f:c753:4d3e:9d/64 scope global temporary dynamic
       valid_lft 604394sec preferred_lft 85840sec
    inet6 2a02:a212:2200:4c00:90a5:98ff:fe0e:9e02/64 scope global dynamic mngtmpaddr noprefixroute
       valid_lft 1110603sec preferred_lft 505803sec
    inet6 fe80::90a5:98ff:fe0e:9e02/64 scope link
       valid_lft forever preferred_lft forever

$ python3
Python 3.7.6 (default, Dec 18 2019, 19:23:55)
[GCC 9.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> f = open('/proc/device-tree/soc/usb@7e980000/usb1@1/usbether@1/local-mac-address', 'rb').read()
>>> list(map(hex, f))
['0xb8', '0x27', '0xeb', '0xc8', '0x18', '0x0']
>>>

gistfile2.txt

$ lsusb
Bus 001 Device 003: ID 0424:ec00 Microchip Technology, Inc. (formerly SMSC) SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Microchip Technology, Inc. (formerly SMSC) SMC9514 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

$ ls -l /proc/device-tree/soc/usb@7e980000/usb1@1/usbether@1
total 0
-r--r--r-- 1 root root 12 Jul 28 18:56 compatible
-r--r--r-- 1 root root  6 Jul 28 18:56 local-mac-address
-r--r--r-- 1 root root  9 Jul 28 18:56 name
-r--r--r-- 1 root root  4 Jul 28 18:56 reg

$ lsmod
Module                  Size  Used by
cfg80211              466944  0
8021q                  28672  0
nls_iso8859_1          16384  1
nls_cp437              16384  1
uio_pdrv_genirq        16384  0
uio                    20480  1 uio_pdrv_genirq
xt_comment             16384  2
ip6table_nat           16384  0
nf_nat_ipv6            16384  1 ip6table_nat
iptable_nat            16384  0
nf_nat_ipv4            16384  1 iptable_nat
nf_nat                 20480  2 nf_nat_ipv6,nf_nat_ipv4
nf_conntrack_ipv6      20480  2
nf_defrag_ipv6         20480  1 nf_conntrack_ipv6
nf_conntrack_ipv4      20480  2
nf_defrag_ipv4         16384  1 nf_conntrack_ipv4
xt_conntrack           16384  2
nf_conntrack           94208  6 nf_conntrack_ipv6,nf_conntrack_ipv4,nf_nat_ipv6,xt_conntrack,nf_nat_ipv4,nf_nat
ip6t_rpfilter          16384  1
ipt_rpfilter           16384  1
ip6table_raw           16384  1
iptable_raw            16384  1
xt_pkttype             16384  2
nf_log_ipv6            16384  1
nf_log_ipv4            16384  1
nf_log_common          16384  2 nf_log_ipv6,nf_log_ipv4
xt_LOG                 16384  2
xt_tcpudp              16384  11
ip6table_filter        16384  1
ip6_tables             24576  5 ip6table_filter,ip6table_raw,ip6table_nat
sch_fq_codel           20480  2
iptable_filter         16384  1
tun                    32768  0
ip_tables              24576  4 iptable_filter,iptable_raw,iptable_nat
x_tables               24576  13 xt_comment,ipt_rpfilter,xt_LOG,xt_pkttype,ip_tables,ip6t_rpfilter,iptable_filter,xt_tcpudp,iptable_raw,ip6table_filter,ip6table_raw,xt_conntrack,ip6_tables
dm_mod                106496  0