B43 has to do with Broadcom... B43-fwcutter... b43 shows up in lines b43 , rfkill, input_polldev, mac80211, and ssb
sorted output:
/sbin/lsmod | sort 8139cp 21697 0 8139too 24513 0 ac 8133 0 ahci 22597 2 arc4 5953 2 ata_piix 16709 1 autofs4 20421 2 b43 129637 0 battery 14025 0 blkcipher 9029 1 ecb bluetooth 49317 4 rfcomm,l2cap button 10321 0 cdrom 33889 1 sr_mod cfg80211 10441 1 mac80211 dm_mirror 21569 0 dm_mod 46209 11 dm_multipath,dm_snapshot,dm_zero,dm_mirror dm_multipath 18249 0 dm_snapshot 17765 0 dm_zero 5825 0 drm 67029 3 i915 ecb 6721 2 ehci_hcd 31693 0 ext3 110665 3 i2c_core 21825 1 i2c_i801 i2c_i801 12113 0 i915 23745 2 input_polldev 7369 1 b43 ip6table_filter 6337 1 ip6_tables 15109 2 ip6t_ipv6header,ip6table_filter ip6t_ipv6header 6209 2 ip6t_REJECT 8257 2 iptable_filter 6465 1 ip_tables 14213 1 iptable_filter ipt_REJECT 7617 2 ipv6 245989 14 nf_conntrack_ipv6,ip6t_REJECT iTCO_vendor_support 7109 1 iTCO_wdt iTCO_wdt 13797 0 jbd 52457 1 ext3 joydev 11649 0 l2cap 25537 9 rfcomm libata 99633 2 ata_piix,ahci loop 16581 0 mac80211 112461 1 b43 mbcache 10177 1 ext3 mii 8385 2 8139too,8139cp Module Size Used by nf_conntrack 51977 3 nf_conntrack_ipv4,nf_conntrack_ipv6,xt_state nf_conntrack_ipv4 11717 2 nf_conntrack_ipv6 18769 2 nfnetlink 8281 3 nf_conntrack_ipv4,nf_conntrack_ipv6,nf_conntrack nls_utf8 5825 1 ohci_hcd 21445 0 output 6977 1 video pcspkr 6593 0 rfcomm 36825 0 rfkill 9297 1 b43 scsi_mod 119757 4 sg,sr_mod,libata,sd_mod sd_mod 27329 3 serio_raw 9029 0 sg 31965 0 snd 43461 11 snd_hda_intel,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_hwdep snd_hda_intel 274529 1 snd_hwdep 10309 1 snd_hda_intel snd_mixer_oss 16705 1 snd_pcm_oss snd_page_alloc 11337 2 snd_hda_intel,snd_pcm snd_pcm 63685 2 snd_hda_intel,snd_pcm_oss snd_pcm_oss 37569 0 snd_seq 44849 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event snd_seq_device 10061 3 snd_seq_dummy,snd_seq_oss,snd_seq snd_seq_dummy 6725 0 snd_seq_midi_event 9793 1 snd_seq_oss snd_seq_oss 29889 0 snd_timer 20549 2 snd_seq,snd_pcm soundcore 9633 1 snd sr_mod 17509 1 ssb 30021 1 b43 sunrpc 140765 1 uhci_hcd 23633 0 video 19921 0 x_tables 14277 7 ipt_REJECT,ip_tables,xt_state,xt_tcpudp,ip6t_ipv6header,ip6t_REJECT,ip6_tables xt_state 6081 4 xt_tcpudp 6977 8