[aconicq1]

Perhaps a module is missing or different? Can we compare the available modules and the live modules between the PW2 and PW3?

Here are the modules for the PW2:
# all available modules

Spoiler:

[root@kindle root]# modprobe -l
/lib/modules/3.0.35-lab126/kernel/compat-wireless/net/wireless/cfg80211.ko
/lib/modules/3.0.35-lab126/kernel/compat-wireless/drivers/net/wireless/ath/ath6kl/ath6kl_sdio.ko
/lib/modules/3.0.35-lab126/kernel/compat-wireless/drivers/net/wireless/ath/ath.ko
/lib/modules/3.0.35-lab126/kernel/fs/nls/nls_utf8.ko
/lib/modules/3.0.35-lab126/kernel/fs/nls/nls_ascii.ko
/lib/modules/3.0.35-lab126/kernel/fs/fuse/fuse.ko
/lib/modules/3.0.35-lab126/kernel/drivers/video/mxc/mxc_epdc_fb.ko
/lib/modules/3.0.35-lab126/kernel/drivers/net/ppp_generic.ko
/lib/modules/3.0.35-lab126/kernel/drivers/net/slhc.ko
/lib/modules/3.0.35-lab126/kernel/drivers/net/wan/pkt_monitor.ko
/lib/modules/3.0.35-lab126/kernel/drivers/net/wan/mwan.ko
/lib/modules/3.0.35-lab126/kernel/drivers/net/ppp_async.ko
/lib/modules/3.0.35-lab126/kernel/drivers/usb/host/ehci-hcd.ko
/lib/modules/3.0.35-lab126/kernel/drivers/usb/serial/option.ko
/lib/modules/3.0.35-lab126/kernel/drivers/usb/serial/usbserial.ko
/lib/modules/3.0.35-lab126/kernel/drivers/usb/serial/usb_wwan.ko
/lib/modules/3.0.35-lab126/kernel/drivers/usb/otg/fsl_otg_arc.ko
/lib/modules/3.0.35-lab126/kernel/drivers/usb/gadget/g_serial.ko
/lib/modules/3.0.35-lab126/kernel/drivers/usb/gadget/g_file_storage.ko
/lib/modules/3.0.35-lab126/kernel/drivers/usb/gadget/arcotg_udc.ko
/lib/modules/3.0.35-lab126/kernel/drivers/usb/gadget/g_ether.ko
/lib/modules/3.0.35-lab126/kernel/drivers/misc/mxs-perfmon.ko
/lib/modules/3.0.35-lab126/kernel/drivers/input/misc/als_max44009.ko
/lib/modules/3.0.35-lab126/kernel/drivers/input/misc/prox_pic12lf1822.ko
/lib/modules/3.0.35-lab126/kernel/drivers/input/keyboard/fsr_keypad.ko
/lib/modules/3.0.35-lab126/kernel/drivers/input/keyboard/drv26xx_haptics.ko
/lib/modules/3.0.35-lab126/kernel/drivers/input/touchscreen/cyttsp4_i2c.ko
/lib/modules/3.0.35-lab126/kernel/drivers/input/touchscreen/cyttsp4_loader.ko
/lib/modules/3.0.35-lab126/kernel/drivers/input/touchscreen/cyttsp4_device_access.ko
/lib/modules/3.0.35-lab126/kernel/drivers/input/touchscreen/cyttsp4_mt_b.ko
/lib/modules/3.0.35-lab126/kernel/drivers/input/touchscreen/cyttsp4_core.ko
/lib/modules/3.0.35-lab126/kernel/drivers/input/touchscreen/zforce2.ko
/lib/modules/3.0.35-lab126/kernel/drivers/input/touchscreen/cyttsp4_debug.ko
/lib/modules/3.0.35-lab126/kernel/crypto/tcrypt.ko
/lib/modules/3.0.35-lab126/kernel/lib/crc-ccitt.ko
/lib/modules/3.0.35-lab126/extra/mxc_epdc_eink.ko

# all live modules when additional .ko files are added from KindleLazy

Spoiler:

[root@kindle root]# cat /proc/modules
mousedev 9072 0 - Live 0xbf31f000
usbhid 18029 0 - Live 0xbf316000
hid 67608 1 usbhid, Live 0xbf300000
ath6kl_sdio 197174 0 - Live 0xbf0c5000
cfg80211 170499 1 ath6kl_sdio, Live 0xbf08f000
g_file_storage 35603 0 - Live 0xbf080000
arcotg_udc 26338 1 g_file_storage, Live 0xbf074000
cyttsp4_mt_b 8180 0 - Live 0xbf06e000
cyttsp4_core 41372 2 - Live 0xbf05c000
cyttsp4_i2c 2563 1 - Live 0xbf058000
fuse 60020 2 - Live 0xbf042000
ehci_hcd 53568 0 - Live 0xbf02e000
fsl_otg_arc 15613 3 ehci_hcd, Live 0xbf026000
mxc_epdc_fb 89437 3 - Live 0xbf006000
mxc_epdc_eink 8771 1 mxc_epdc_fb, Live 0xbf000000 (P)