[Nexus 6 Android Development] Mystique:
just did a dmesg.. still on 2.2

[16244.956948] hidg_unbind: destroying device c3b8be00

[16244.957433] ------------[ cut here ]------------

[16244.957453] WARNING: at drivers/usb/dwc3/gadget.c:806 dwc3_gadget_ep_disable+0xf8/0x134()

[16244.957461] Device dwc3

[16244.957461] ep3in is already disabled

[16244.957473] CPU: 0 PID: 1 Comm: init Tainted: G W 3.10.95-Singularity-N6-V-2.2-g921199a #1

[16244.957501] [<c0116420>] (unwind_backtrace) from [<c0112534>] (show_stack+0x14/0x20)

[16244.957521] [<c0112534>] (show_stack) from [<c01924d8>] (warn_slowpath_fmt+0x68/0xe8)

[16244.957536] [<c01924d8>] (warn_slowpath_fmt) from [<c0809798>] (dwc3_gadget_ep_disable+0xf8/0x134)

[16244.957555] [<c0809798>] (dwc3_gadget_ep_disable) from [<c08d0500>] (hidg_unbind+0xbc/0x130)

[16244.957573] [<c08d0500>] (hidg_unbind) from [<c0869924>] (unbind_config+0xc4/0x134)

[16244.957592] [<c0869924>] (unbind_config) from [<c08b6b84>] (enable_store+0x278/0x3b8)

[16244.957611] [<c08b6b84>] (enable_store) from [<c0376128>] (sysfs_write_file+0xe4/0x1a8)

[16244.957629] [<c0376128>] (sysfs_write_file) from [<c02f614c>] (SyS_write+0x118/0x2b0)

[16244.957733] [<c02f614c>] (SyS_write) from [<c010df80>] (ret_fast_syscall+0x0/0x38)

[16244.957742] ---[ end trace da227214a82491bb ]---

[16244.957753] hidg_unbind: destroying device c3b8bb00

[16244.958448] init: Starting service 'adbd'...

[16244.958970] mtp_release

[16244.963026] init: Service 'adbd' is being killed...

[16244.982219] read descriptors

[16244.982231] read descriptors

[16244.982238] read strings

[16245.013634] enable_store: 1 callbacks suppressed

[16245.013647] enable_store: android_usb: already disabled

[16245.013890] init: Starting service 'thermal-engine'...

[16245.014516] init: cannot execve('/system/bin/thermal-engine'): Permission denied

[16245.014719] functionfs_bind: already bound

[16245.014728] ffs_function_enable: ffs_function_enable: functionfs_bind failed (-114)

[16245.014736] mtp_bind_config

[16245.014778] hid keyboard

[16245.014788] hidg_bind: creating device c3b8be00

[16245.015039] hid mouse

[16245.015048] hidg_bind: creating device c3b8bb00

[16245.015499] init: Service 'thermal-engine' (pid 30097) exited with status 127

[16245.015525] init: Service 'thermal-engine' (pid 30097) killing any children in process group

[16245.226623] dwc3 f9200000.dwc3: Avail curr from USB = 0

[16245.226874] android_work: android_work: sent uevent USB_STATE=DISCONNECTED

[16245.293103] android_work: android_work: sent uevent USB_STATE=CONNECTED

[16245.296816] android_work: android_work: sent uevent USB_STATE=DISCONNECTED

[16245.379671] android_work: android_work: sent uevent USB_STATE=CONNECTED

[16245.381199] android_usb gadget: high-speed config #1: fe8050c8.android_usb

[16245.381328] dwc3 f9200000.dwc3: Avail curr from USB = 500

[16245.434113] android_work: android_work: sent uevent USB_STATE=CONFIGURED

[16245.467765] mtp_open

[16250.387738] init: Starting service 'thermal-engine'...

[16250.388480] init: cannot execve('/system/bin/thermal-engine'): Permission denied

[16250.389041] init: Service 'thermal-engine' (pid 30127) exited with status 127

[16250.389063] init: Service 'thermal-engine' (pid 30127) killing any children in process group

[16255.395574] init: Starting service 'thermal-engine'...

[16255.397262] init: cannot execve('/system/bin/thermal-engine'): Permission denied

[16255.399373] init: Service 'thermal-engine' (pid 30137) exited with status 127

[16255.404113] init: Service 'thermal-engine' (pid 30137) killing any children in process group

Will update to 2.3