Testing for Kernel 4.2.0-rc3-wl-ath dmesg | grep i2c : [ 3.047384] i2c /dev entries driver [ 6.332677] i2c_designware INT3433:00: controller timed out [ 6.359116] i2c_designware INT3433:00: timeout in disabling adapter [ 6.359152] i2c_hid i2c-SYN1B7F:00: hid_descr_cmd failed [ 7.067879] Modules linked in: intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp kvm_intel kvm snd_hda_codec_hdmi joydev i915 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper acer_wmi ablk_helper sparse_keymap cryptd serio_raw uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media btusb btrtl btbcm btintel bluetooth drm_kms_helper drm snd_soc_rt5640 snd_soc_rl6231 snd_soc_core snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi snd_seq_midi_event snd_compress snd_rawmidi snd_pcm_dmaengine snd_seq snd_pcm i2c_hid snd_seq_device mei_me hid snd_timer spi_pxa2xx_platform 8250_dw mei video soc_button_array snd wmi dw_dmac i2c_designware_platform i2c_designware_core [ 7.067886] i2c_algo_bit dw_dmac_core snd_soc_sst_acpi shpchp lpc_ich soundcore mac_hid acpi_pad coretemp parport_pc ppdev lp parport autofs4 ahci libahci r8169 mii sdhci_acpi sdhci [ 7.843456] i2c_designware INT3433:00: timeout in disabling adapter dmesg | grep hid: [ 5.305682] hidraw: raw HID events driver (C) Jiri Kosina [ 6.359152] i2c_hid i2c-SYN1B7F:00: hid_descr_cmd failed [ 7.067879] Modules linked in: intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp kvm_intel kvm snd_hda_codec_hdmi joydev i915 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper acer_wmi ablk_helper sparse_keymap cryptd serio_raw uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media btusb btrtl btbcm btintel bluetooth drm_kms_helper drm snd_soc_rt5640 snd_soc_rl6231 snd_soc_core snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi snd_seq_midi_event snd_compress snd_rawmidi snd_pcm_dmaengine snd_seq snd_pcm i2c_hid snd_seq_device mei_me hid snd_timer spi_pxa2xx_platform 8250_dw mei video soc_button_array snd wmi dw_dmac i2c_designware_platform i2c_designware_core [ 7.067886] i2c_algo_bit dw_dmac_core snd_soc_sst_acpi shpchp lpc_ich soundcore mac_hid acpi_pad coretemp parport_pc ppdev lp parport autofs4 ahci libahci r8169 mii sdhci_acpi sdhci xinput : ⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎣ Virtual core keyboard id=3 [master keyboard (2)] ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)] ↳ Power Button id=6 [slave keyboard (3)] ↳ Video Bus id=7 [slave keyboard (3)] ↳ Video Bus id=8 [slave keyboard (3)] ↳ Sleep Button id=9 [slave keyboard (3)] ↳ HD WebCam id=10 [slave keyboard (3)] ↳ AT Translated Set 2 keyboard id=11 [slave keyboard (3)] ↳ Acer WMI hotkeys id=12 [slave keyboard (3)]