No me había dado cuenta que no he publicado los básicos del Arduino Yún:
# uname -a
Linux yun402b 3.3.8 #1 Sun Oct 4 02:29:26 CEST 2015 mips GNU/Linux
# cat /proc/cpuinfo
system type : Atheros AR9330 rev 1
machine : Arduino Yun
processor : 0
cpu model : MIPS 24Kc V7.4
BogoMIPS : 265.42
wait instruction : yes
microsecond timers : yes
tlb_entries : 16
extra interrupt vector : yes
hardware watchpoint : yes, count: 4, address/irw mask: [0x0000, 0x03a8, 0x03f8, 0x05e0]
ASEs implemented : mips16
shadow register sets : 1
kscratch registers : 0
core : 0
VCED exceptions : not available
VCEI exceptions : not available
# cat /proc/interrupts
CPU0
2: 13806 MIPS ath9k
3: 3612 MIPS ehci_hcd:usb1
4: 0 MIPS eth1
5: 0 MIPS eth0
7: 111541 MIPS timer
10: 0 MISC ath79-gpio
11: 4520 MISC ar933x-uart
ERR: 0
# cat /proc/iomem
00000000-03ffffff : System RAM
00060000-002ad897 : Kernel code
002ad898-0034e3df : Kernel data
18020000-180200ff : ar933x-uart
18100000-1811ffff : ar933x_wmac
19000000-190001ff : mac_base
1a000000-1a0001ff : mac_base
1a000000-1a0001ff : mdio_base
1b000000-1b000fff : ehci-platform
1b000000-1b000fff : ehci_hcd
1f000000-1fffffff : ath79-spi
# free
total used free shared buffers
Mem: 61324 34508 26816 0 5180
-/+ buffers: 29328 31996
# lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 058f:6254 Alcor Micro Corp. USB Hub
Bus 001 Device 003: ID 058f:6366 Alcor Micro Corp. Multi Flash Reader
# cat /etc/openwrt_version
linino
# cat /etc/openwrt_release
DISTRIB_ID="Linino"
DISTRIB_RELEASE="devel"
DISTRIB_REVISION="r41182"
DISTRIB_CODENAME="attitude_adjustment"
DISTRIB_TARGET="ar71xx/generic"
DISTRIB_DESCRIPTION="Linino Attitude Adjustment devel"