Warning: Permanently added '10.128.0.241' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 35.974753][ T7] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 36.334716][ T7] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x84 has an invalid bInterval 0, changing to 7 [ 36.345860][ T7] usb 1-1: New USB device found, idVendor=15c2, idProduct=0039, bcdDevice=d2.65 [ 36.354943][ T7] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 36.366529][ T7] usb 1-1: config 0 descriptor?? [ 36.411112][ T7] input: iMON Panel, Knob and Mouse(15c2:0039) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/input/input5 [ 36.714380][ T7] rc_core: IR keymap rc-imon-pad not found [ 36.720214][ T7] Registered IR keymap rc-empty [ 36.726089][ T7] imon 1-1:0.0: Looks like you're trying to use an IR protocol this device does not support [ 36.736200][ T7] imon 1-1:0.0: Unsupported IR protocol specified, overriding to iMON IR protocol [ 36.867487][ T7] rc rc0: iMON Remote (15c2:0039) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0 [ 36.880026][ T7] input: iMON Remote (15c2:0039) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0/input6 [ 36.903970][ T7] imon 1-1:0.0: iMON device (15c2:0039, intf0) on usb<1:2> initialized [ 37.044989][ T2912] [ 37.047338][ T2912] ====================================================== [ 37.054347][ T2912] WARNING: possible circular locking dependency detected [ 37.061361][ T2912] 5.15.0-rc3-syzkaller #0 Not tainted [ 37.066706][ T2912] ------------------------------------------------------ [ 37.073698][ T2912] syz-executor666/2912 is trying to acquire lock: [ 37.080088][ T2912] ffffffff881eed68 (driver_lock){+.+.}-{3:3}, at: display_open+0x1f/0x220 [ 37.088616][ T2912] [ 37.088616][ T2912] but task is already holding lock: [ 37.095952][ T2912] ffffffff87f7e9b0 (minor_rwsem){++++}-{3:3}, at: usb_open+0x24/0x2e0 [ 37.104106][ T2912] [ 37.104106][ T2912] which lock already depends on the new lock. [ 37.104106][ T2912] [ 37.114662][ T2912] [ 37.114662][ T2912] the existing dependency chain (in reverse order) is: [ 37.123668][ T2912] [ 37.123668][ T2912] -> #2 (minor_rwsem){++++}-{3:3}: [ 37.130937][ T2912] down_write+0x92/0x150 [ 37.135700][ T2912] usb_register_dev+0x19d/0x7e0 [ 37.141066][ T2912] imon_probe+0x24c6/0x2b60 [ 37.146068][ T2912] usb_probe_interface+0x315/0x7f0 [ 37.151690][ T2912] really_probe+0x245/0xcc0 [ 37.156700][ T2912] __driver_probe_device+0x338/0x4d0 [ 37.162501][ T2912] driver_probe_device+0x4c/0x1a0 [ 37.168055][ T2912] __device_attach_driver+0x20b/0x2f0 [ 37.173933][ T2912] bus_for_each_drv+0x15f/0x1e0 [ 37.179304][ T2912] __device_attach+0x228/0x4a0 [ 37.184573][ T2912] bus_probe_device+0x1e4/0x290 [ 37.189943][ T2912] device_add+0xc35/0x21b0 [ 37.194872][ T2912] usb_set_configuration+0x113f/0x1910 [ 37.200839][ T2912] usb_generic_driver_probe+0xba/0x100 [ 37.206812][ T2912] usb_probe_device+0xd9/0x2c0 [ 37.212104][ T2912] really_probe+0x245/0xcc0 [ 37.217114][ T2912] __driver_probe_device+0x338/0x4d0 [ 37.222906][ T2912] driver_probe_device+0x4c/0x1a0 [ 37.228438][ T2912] __device_attach_driver+0x20b/0x2f0 [ 37.234314][ T2912] bus_for_each_drv+0x15f/0x1e0 [ 37.239669][ T2912] __device_attach+0x228/0x4a0 [ 37.245028][ T2912] bus_probe_device+0x1e4/0x290 [ 37.250555][ T2912] device_add+0xc35/0x21b0 [ 37.255475][ T2912] usb_new_device.cold+0x63f/0x108e [ 37.261182][ T2912] hub_event+0x2357/0x4330 [ 37.266133][ T2912] process_one_work+0x9bf/0x1620 [ 37.271663][ T2912] worker_thread+0x658/0x11f0 [ 37.276938][ T2912] kthread+0x3c2/0x4a0 [ 37.281535][ T2912] ret_from_fork+0x1f/0x30 [ 37.286469][ T2912] [ 37.286469][ T2912] -> #1 (&ictx->lock){+.+.}-{3:3}: [ 37.293742][ T2912] __mutex_lock+0x12c/0x12b0 [ 37.298838][ T2912] imon_probe+0xfbf/0x2b60 [ 37.303756][ T2912] usb_probe_interface+0x315/0x7f0 [ 37.309387][ T2912] really_probe+0x245/0xcc0 [ 37.314421][ T2912] __driver_probe_device+0x338/0x4d0 [ 37.320228][ T2912] driver_probe_device+0x4c/0x1a0 [ 37.325845][ T2912] __device_attach_driver+0x20b/0x2f0 [ 37.331756][ T2912] bus_for_each_drv+0x15f/0x1e0 [ 37.337113][ T2912] __device_attach+0x228/0x4a0 [ 37.342388][ T2912] bus_probe_device+0x1e4/0x290 [ 37.348097][ T2912] device_add+0xc35/0x21b0 [ 37.353017][ T2912] usb_set_configuration+0x113f/0x1910 [ 37.358979][ T2912] usb_generic_driver_probe+0xba/0x100 [ 37.364960][ T2912] usb_probe_device+0xd9/0x2c0 [ 37.370237][ T2912] really_probe+0x245/0xcc0 [ 37.375245][ T2912] __driver_probe_device+0x338/0x4d0 [ 37.381054][ T2912] driver_probe_device+0x4c/0x1a0 [ 37.386621][ T2912] __device_attach_driver+0x20b/0x2f0 [ 37.392500][ T2912] bus_for_each_drv+0x15f/0x1e0 [ 37.397859][ T2912] __device_attach+0x228/0x4a0 [ 37.403147][ T2912] bus_probe_device+0x1e4/0x290 [ 37.408502][ T2912] device_add+0xc35/0x21b0 [ 37.413422][ T2912] usb_new_device.cold+0x63f/0x108e [ 37.419127][ T2912] hub_event+0x2357/0x4330 [ 37.424054][ T2912] process_one_work+0x9bf/0x1620 [ 37.429520][ T2912] worker_thread+0x658/0x11f0 [ 37.434802][ T2912] kthread+0x3c2/0x4a0 [ 37.439373][ T2912] ret_from_fork+0x1f/0x30 [ 37.444473][ T2912] [ 37.444473][ T2912] -> #0 (driver_lock){+.+.}-{3:3}: [ 37.451762][ T2912] __lock_acquire+0x2a07/0x54a0 [ 37.457118][ T2912] lock_acquire+0x19d/0x4d0 [ 37.462126][ T2912] __mutex_lock+0x12c/0x12b0 [ 37.467232][ T2912] display_open+0x1f/0x220 [ 37.472152][ T2912] usb_open+0x204/0x2e0 [ 37.476817][ T2912] chrdev_open+0x266/0x770 [ 37.481741][ T2912] do_dentry_open+0x4c3/0x1110 [ 37.487010][ T2912] path_openat+0x1c9a/0x2740 [ 37.492107][ T2912] do_filp_open+0x1aa/0x400 [ 37.497130][ T2912] do_sys_openat2+0x16d/0x4d0 [ 37.502311][ T2912] __x64_sys_openat+0x13f/0x1f0 [ 37.507665][ T2912] do_syscall_64+0x35/0xb0 [ 37.512585][ T2912] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 37.518992][ T2912] [ 37.518992][ T2912] other info that might help us debug this: [ 37.518992][ T2912] [ 37.529223][ T2912] Chain exists of: [ 37.529223][ T2912] driver_lock --> &ictx->lock --> minor_rwsem [ 37.529223][ T2912] [ 37.541214][ T2912] Possible unsafe locking scenario: [ 37.541214][ T2912] [ 37.548662][ T2912] CPU0 CPU1 [ 37.554010][ T2912] ---- ---- [ 37.559354][ T2912] lock(minor_rwsem); [ 37.563413][ T2912] lock(&ictx->lock); [ 37.570027][ T2912] lock(minor_rwsem); [ 37.576601][ T2912] lock(driver_lock); [ 37.580658][ T2912] [ 37.580658][ T2912] *** DEADLOCK *** [ 37.580658][ T2912] [ 37.588778][ T2912] 1 lock held by syz-executor666/2912: [ 37.594215][ T2912] #0: ffffffff87f7e9b0 (minor_rwsem){++++}-{3:3}, at: usb_open+0x24/0x2e0 [ 37.603033][ T2912] [ 37.603033][ T2912] stack backtrace: [ 37.609023][ T2912] CPU: 0 PID: 2912 Comm: syz-executor666 Not tainted 5.15.0-rc3-syzkaller #0 [ 37.617779][ T2912] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.627830][ T2912] Call Trace: [ 37.631099][ T2912] dump_stack_lvl+0xcd/0x134 [ 37.635697][ T2912] check_noncircular+0x25f/0x2e0 [ 37.640620][ T2912] ? print_circular_bug+0x1e0/0x1e0 [ 37.645810][ T2912] ? lockdep_lock+0xba/0x200 [ 37.650392][ T2912] ? call_rcu_zapped+0xb0/0xb0 [ 37.655150][ T2912] __lock_acquire+0x2a07/0x54a0 [ 37.659993][ T2912] ? lockdep_hardirqs_on_prepare+0x3e0/0x3e0 [ 37.665957][ T2912] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 37.672188][ T2912] ? lockdep_unlock+0x10e/0x280 [ 37.677028][ T2912] ? __lock_acquire+0x24ca/0x54a0 [ 37.682048][ T2912] lock_acquire+0x19d/0x4d0 [ 37.686542][ T2912] ? display_open+0x1f/0x220 [ 37.691118][ T2912] ? lock_release+0x6e0/0x6e0 [ 37.695779][ T2912] ? lockdep_hardirqs_on_prepare+0x3e0/0x3e0 [ 37.701744][ T2912] ? __lock_acquire+0x162f/0x54a0 [ 37.706760][ T2912] __mutex_lock+0x12c/0x12b0 [ 37.711348][ T2912] ? display_open+0x1f/0x220 [ 37.715920][ T2912] ? lock_release+0x6e0/0x6e0 [ 37.720576][ T2912] ? display_open+0x1f/0x220 [ 37.725150][ T2912] ? mutex_lock_io_nested+0x1130/0x1130 [ 37.730684][ T2912] ? down_read+0x19a/0x440 [ 37.735093][ T2912] ? chrdev_open+0x58c/0x770 [ 37.739670][ T2912] ? rwsem_down_read_slowpath+0x990/0x990 [ 37.745394][ T2912] ? do_raw_spin_lock+0x120/0x2b0 [ 37.750407][ T2912] display_open+0x1f/0x220 [ 37.754818][ T2912] ? display_close+0x160/0x160 [ 37.759565][ T2912] usb_open+0x204/0x2e0 [ 37.763709][ T2912] ? usb_devnode+0xa0/0xa0 [ 37.768108][ T2912] chrdev_open+0x266/0x770 [ 37.772512][ T2912] ? cdev_device_add+0x210/0x210 [ 37.777437][ T2912] ? fsnotify_perm.part.0+0x22d/0x620 [ 37.782821][ T2912] do_dentry_open+0x4c3/0x1110 [ 37.787587][ T2912] ? cdev_device_add+0x210/0x210 [ 37.792516][ T2912] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 37.798749][ T2912] ? may_open+0x1f6/0x420 [ 37.803098][ T2912] path_openat+0x1c9a/0x2740 [ 37.807678][ T2912] ? path_lookupat+0x860/0x860 [ 37.812438][ T2912] ? mark_lock+0xef/0x17b0 [ 37.816841][ T2912] ? lockdep_hardirqs_on_prepare+0x3e0/0x3e0 [ 37.822823][ T2912] do_filp_open+0x1aa/0x400 [ 37.827333][ T2912] ? may_open_dev+0xf0/0xf0 [ 37.831817][ T2912] ? rwlock_bug.part.0+0x90/0x90 [ 37.836739][ T2912] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 37.842965][ T2912] ? _find_next_bit+0x1e3/0x260 [ 37.847804][ T2912] ? _raw_spin_unlock+0x1a/0x30 [ 37.852701][ T2912] ? alloc_fd+0x2f0/0x670 [ 37.857060][ T2912] do_sys_openat2+0x16d/0x4d0 [ 37.861732][ T2912] ? build_open_flags+0x6f0/0x6f0 [ 37.866883][ T2912] ? __context_tracking_exit+0x9f/0xb0 [ 37.872327][ T2912] ? lock_downgrade+0x6e0/0x6e0 [ 37.877165][ T2912] __x64_sys_openat+0x13f/0x1f0 [ 37.882065][ T2912] ? __ia32_sys_open+0x1c0/0x1c0 [ 37.886989][ T2912] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 37.892956][ T2912] ? syscall_enter_from_user_mode+0x21/0x70 [ 37.898834][ T2912] do_syscall_64+0x35/0xb0 [ 37.903238][ T2912] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 37.909118][ T2912] RIP: 0033:0x7fd218cb7fd7 [ 37.913615][ T2912] Code: 25 00 00 41 00 3d 00 00 41 00 74 47 64 8b 04 25 18 00 00 00 85 c0 75 6b 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 95 00 00 00 48 8b 4c 24 28 64 48 2b 0c 25 [ 37.933216][ T2912] RSP: 002b:00007ffd3b296a30 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 executing program [ 37.941624][ T2912] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd218cb7fd7 [ 37.949585][ T2912] RDX: 0000000000000002 RSI: 00007ffd3b296ab0 RDI: 00000000ffffff9c [ 37.957722][ T2912] RBP: 00007ffd3b296ab0 R08: 0000000000000000 R09: 000000000000000f [ 37.965768][ T2912] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 37.973733][ T2912] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 37.983658][ T7] usb 1-1: USB disconnect, device number 2 [ 38.383792][ T7] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 38.743735][ T7] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x84 has an invalid bInterval 0, changing to 7 [ 38.754639][ T7] usb 1-1: New USB device found, idVendor=15c2, idProduct=0039, bcdDevice=d2.65 [ 38.763691][ T7] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 38.774172][ T7] usb 1-1: config 0 descriptor?? [ 38.817575][ T7] input: iMON Panel, Knob and Mouse(15c2:0039) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/input/input7 [ 39.093474][ T7] rc_core: IR keymap rc-imon-pad not found [ 39.099346][ T7] Registered IR keymap rc-empty [ 39.104897][ T7] imon 1-1:0.0: Looks like you're trying to use an IR protocol this device does not support [ 39.115015][ T7] imon 1-1:0.0: Unsupported IR protocol specified, overriding to iMON IR protocol [ 39.255241][ T7] rc rc0: iMON Remote (15c2:0039) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0 [ 39.266236][ T7] input: iMON Remote (15c2:0039) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0/input8 [ 39.280866][ T7] imon 1-1:0.0: iMON device (15c2:0039, intf0) on usb<1:3> initialized executing program [ 39.434681][ T7] usb 1-1: USB disconnect, device number 3 [ 39.823268][ T7] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 40.183250][ T7] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x84 has an invalid bInterval 0, changing to 7 [ 40.194203][ T7] usb 1-1: New USB device found, idVendor=15c2, idProduct=0039, bcdDevice=d2.65 [ 40.203261][ T7] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 40.212106][ T7] usb 1-1: config 0 descriptor?? [ 40.255063][ T7] input: iMON Panel, Knob and Mouse(15c2:0039) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/input/input9 [ 40.543069][ T7] rc_core: IR keymap rc-imon-pad not found [ 40.549037][ T7] Registered IR keymap rc-empty [ 40.554592][ T7] imon 1-1:0.0: Looks like you're trying to use an IR protocol this device does not support [ 40.564867][ T7] imon 1-1:0.0: Unsupported IR protocol specified, overriding to iMON IR protocol [ 40.703431][ T7] rc rc0: iMON Remote (15c2:0039) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0 [ 40.714659][ T7] input: iMON Remote (15c2:0039) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0/input10 [ 40.730524][ T7] imon 1-1:0.0: iMON device (15c2:0039, intf0) on usb<1:4> initialized executing program [ 40.884562][ T7] usb 1-1: USB disconnect, device number 4 [ 41.262839][ T7] usb 1-1: new high-speed USB device number 5 using dummy_hcd [ 41.622849][ T7] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x84 has an invalid bInterval 0, changing to 7 [ 41.633755][ T7] usb 1-1: New USB device found, idVendor=15c2, idProduct=0039, bcdDevice=d2.65 [ 41.642803][ T7] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 41.651650][ T7] usb 1-1: config 0 descriptor?? [ 41.694990][ T7] input: iMON Panel, Knob and Mouse(15c2:0039) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/input/input11 [ 41.972669][ T7] rc_core: IR keymap rc-imon-pad not found [ 41.978503][ T7] Registered IR keymap rc-empty [ 41.984075][ T7] imon 1-1:0.0: Looks like you're trying to use an IR protocol this device does not support [ 41.994184][ T7] imon 1-1:0.0: Unsupported IR protocol specified, overriding to iMON IR protocol [ 42.154562][ T7] rc rc0: iMON Remote (15c2:0039) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0 [ 42.166045][ T7] input: iMON Remote (15c2:0039) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0/input12 [ 42.182108][ T7] imon 1-1:0.0: iMON device (15c2:0039, intf0) on usb<1:5> initialized executing program [ 42.333996][ T7] usb 1-1: USB disconnect, device number 5 [ 42.712449][ T7] usb 1-1: new high-speed USB device number 6 using dummy_hcd [ 43.092446][ T7] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x84 has an invalid bInterval 0, changing to 7 [ 43.103413][ T7] usb 1-1: New USB device found, idVendor=15c2, idProduct=0039, bcdDevice=d2.65 [ 43.112460][ T7] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 43.123035][ T7] usb 1-1: config 0 descriptor?? [ 43.186633][ T7] input: iMON Panel, Knob and Mouse(15c2:0039) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/input/input13 [ 43.452238][ T7] rc_core: IR keymap rc-imon-pad not found [ 43.458228][ T7] Registered IR keymap rc-empty [ 43.463421][ T7] imon 1-1:0.0: Looks like you're trying to use an IR protocol this device does not support [ 43.473557][ T7] imon 1-1:0.0: Unsupported IR protocol specified, overriding to iMON IR protocol [ 43.634196][ T7] rc rc0: iMON Remote (15c2:0039) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0 [ 43.645709][ T7] input: iMON Remote (15c2:0039) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0/input14 [ 43.666563][ T7] imon 1-1:0.0: iMON device (15c2:0039, intf0) on usb<1:6> initialized executing program [ 43.813699][ T7] usb 1-1: USB disconnect, device number 6 [ 44.192062][ T7] usb 1-1: new high-speed USB device number 7 using dummy_hcd [ 44.552079][ T7] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x84 has an invalid bInterval 0, changing to 7 [ 44.562984][ T7] usb 1-1: New USB device found, idVendor=15c2, idProduct=0039, bcdDevice=d2.65 [ 44.572035][ T7] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 44.583067][ T7] usb 1-1: config 0 descriptor?? [ 44.626113][ T7] input: iMON Panel, Knob and Mouse(15c2:0039) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/input/input15 [ 44.901914][ T7] rc_core: IR keymap rc-imon-pad not found [ 44.907750][ T7] Registered IR keymap rc-empty [ 44.913315][ T7] imon 1-1:0.0: Looks like you're trying to use an IR protocol this device does not support [ 44.923428][ T7] imon 1-1:0.0: Unsupported IR protocol specified, overriding to iMON IR protocol [ 45.084485][ T7] rc rc0: iMON Remote (15c2:0039) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0 [ 45.096008][ T7] input: iMON Remote (15c2:0039) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0/input16 [ 45.116557][ T7] imon 1-1:0.0: iMON device (15c2:0039, intf0) on usb<1:7> initialized executing program [ 45.263218][ T7] usb 1-1: USB disconnect, device number 7 [ 45.651690][ T7] usb 1-1: new high-speed USB device number 8 using dummy_hcd [ 46.011707][ T7] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x84 has an invalid bInterval 0, changing to 7 [ 46.022659][ T7] usb 1-1: New USB device found, idVendor=15c2, idProduct=0039, bcdDevice=d2.65 [ 46.031878][ T7] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 46.042551][ T7] usb 1-1: config 0 descriptor?? [ 46.085781][ T7] input: iMON Panel, Knob and Mouse(15c2:0039) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/input/input17 [ 46.361663][ T7] rc_core: IR keymap rc-imon-pad not found [ 46.367636][ T7] Registered IR keymap rc-empty [ 46.373335][ T7] imon 1-1:0.0: Looks like you're trying to use an IR protocol this device does not support [ 46.383440][ T7] imon 1-1:0.0: Unsupported IR protocol specified, overriding to iMON IR protocol [ 46.533489][ T7] rc rc0: iMON Remote (15c2:0039) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0 [ 46.545012][ T7] input: iMON Remote (15c2:0039) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0/input18 [ 46.560636][ T7] imon 1-1:0.0: iMON device (15c2:0039, intf0) on usb<1:8> initialized executing program [ 46.713331][ T7] usb 1-1: USB disconnect, device number 8