Re: [REGRESSION] usb: xhci port capability storage change broke fastboot android bootloader utility

On Thu, 2 Jan 2025 16:13:34 +0200, Mathias Nyman wrote:

It's not clear to me why this patch would cause regression.

Could you enable xhci and usb core dynamic debug before connecting the device, and then share dmesg after the issue is triggered.

dmesg of a working case would also be good to have for comparison.

I booted kernel 9b780c845fb6 (the last good one), logged in to my desktop, waited a couple of minutes to let things settle, and then ran 'fastboot getvar kernel' twice with the android device in bootloader mode. Here's the dmesg output:

[ 178.056557] xhci_hcd 0000:0c:00.0: ep 0x82 - asked for 32 bytes, 26 bytes untransferred [ 179.166570] xhci_hcd 0000:0c:00.0: ep 0x82 - asked for 32 bytes, 26 bytes untransferred [ 179.738601] xhci_hcd 0000:0c:00.0: ep 0x82 - asked for 32 bytes, 26 bytes untransferred [ 179.874603] xhci_hcd 0000:0c:00.0: ep 0x82 - asked for 32 bytes, 26 bytes untransferred [ 195.331308] xhci_hcd 0000:0c:00.0: Port change event, 1-3, id 8, portsc: 0x202e1 [ 195.331313] xhci_hcd 0000:0c:00.0: handle_port_status: starting usb1 port polling. [ 195.331337] hub 1-0:1.0: state 7 ports 12 chg 0000 evt 0008 [ 195.331343] xhci_hcd 0000:0c:00.0: Get port status 1-3 read: 0x202e1, return 0x10101 [ 195.331354] xhci_hcd 0000:0c:00.0: clear port3 connect change, portsc: 0x2e1 [ 195.331360] usb usb1-port3: status 0101, change 0001, 12 Mb/s [ 195.331363] xhci_hcd 0000:0c:00.0: Get port status 1-3 read: 0x2e1, return 0x101 [ 195.359097] xhci_hcd 0000:0c:00.0: xhci_hub_status_data: stopping usb1 port polling [ 195.367107] xhci_hcd 0000:0c:00.0: Get port status 1-3 read: 0x2e1, return 0x101 [ 195.403105] xhci_hcd 0000:0c:00.0: Get port status 1-3 read: 0x2e1, return 0x101 [ 195.439107] xhci_hcd 0000:0c:00.0: Get port status 1-3 read: 0x2e1, return 0x101 [ 195.475109] xhci_hcd 0000:0c:00.0: Get port status 1-3 read: 0x2e1, return 0x101 [ 195.475119] usb usb1-port3: debounce total 100ms stable 100ms status 0x101 [ 195.475124] xhci_hcd 0000:0c:00.0: // Ding dong! [ 195.475222] xhci_hcd 0000:0c:00.0: Slot 5 output ctx = 0x0x00000000fff58000 (dma) [ 195.475232] xhci_hcd 0000:0c:00.0: Slot 5 input ctx = 0x0x00000000fff4e000 (dma) [ 195.475240] xhci_hcd 0000:0c:00.0: Set slot id 5 dcbaa entry 0000000014c537d8 to 0xfff58000 [ 195.475261] xhci_hcd 0000:0c:00.0: set port reset, actual port 1-3 status = 0x2e1 [ 195.543104] xhci_hcd 0000:0c:00.0: Get port status 1-3 read: 0x331, return 0x111 [ 195.543113] usb usb1-port3: not reset yet, waiting 60ms [ 195.550132] xhci_hcd 0000:0c:00.0: Port change event, 1-3, id 8, portsc: 0x200e03 [ 195.550137] xhci_hcd 0000:0c:00.0: handle_port_status: starting usb1 port polling. [ 195.611110] xhci_hcd 0000:0c:00.0: Get port status 1-3 read: 0x200e03, return 0x100503 [ 195.611123] xhci_hcd 0000:0c:00.0: clear port3 reset change, portsc: 0xe03 [ 195.671106] usb 1-3: new high-speed USB device number 6 using xhci_hcd [ 195.671111] xhci_hcd 0000:0c:00.0: Slot ID 5: HW portnum 7, hcd portnum 2 [ 195.671113] xhci_hcd 0000:0c:00.0: udev->tt = 0000000000000000 [ 195.671115] xhci_hcd 0000:0c:00.0: udev->ttport = 0x0 [ 195.671117] xhci_hcd 0000:0c:00.0: // Ding dong! [ 195.671624] xhci_hcd 0000:0c:00.0: Successful setup context command [ 195.671628] xhci_hcd 0000:0c:00.0: Op regs DCBAA ptr = 0x000000fffff000 [ 195.671630] xhci_hcd 0000:0c:00.0: Slot ID 5 dcbaa entry @0000000014c537d8 = 0x000000fff58000 [ 195.671633] xhci_hcd 0000:0c:00.0: Output Context DMA address = 0xfff58000 [ 195.671634] xhci_hcd 0000:0c:00.0: Internal device address = 0 [ 195.674197] xhci_hcd 0000:0c:00.0: Waiting for status stage event [ 195.676204] xhci_hcd 0000:0c:00.0: set port reset, actual port 1-3 status = 0xe03 [ 195.743113] xhci_hcd 0000:0c:00.0: Get port status 1-3 read: 0x331, return 0x111 [ 195.743124] usb usb1-port3: not reset yet, waiting 60ms [ 195.751006] xhci_hcd 0000:0c:00.0: Port change event, 1-3, id 8, portsc: 0x200e03 [ 195.751011] xhci_hcd 0000:0c:00.0: handle_port_status: starting usb1 port polling. [ 195.811114] xhci_hcd 0000:0c:00.0: Get port status 1-3 read: 0x200e03, return 0x100503 [ 195.811126] xhci_hcd 0000:0c:00.0: clear port3 reset change, portsc: 0xe03 [ 195.855115] xhci_hcd 0000:0c:00.0: xhci_hub_status_data: stopping usb1 port polling [ 195.871114] xhci_hcd 0000:0c:00.0: Resetting device with slot ID 5 [ 195.871119] xhci_hcd 0000:0c:00.0: // Ding dong! [ 195.871155] xhci_hcd 0000:0c:00.0: Completed reset device command. [ 195.871160] xhci_hcd 0000:0c:00.0: Can't reset device (slot ID 5) in default state [ 195.871162] xhci_hcd 0000:0c:00.0: Not freeing device rings. [ 195.871165] xhci_hcd 0000:0c:00.0: // Ding dong! [ 195.871940] xhci_hcd 0000:0c:00.0: Successful setup address command [ 195.871944] xhci_hcd 0000:0c:00.0: Op regs DCBAA ptr = 0x000000fffff000 [ 195.871947] xhci_hcd 0000:0c:00.0: Slot ID 5 dcbaa entry @0000000014c537d8 = 0x000000fff58000 [ 195.871949] xhci_hcd 0000:0c:00.0: Output Context DMA address = 0xfff58000 [ 195.871951] xhci_hcd 0000:0c:00.0: Internal device address = 5 [ 195.918200] xhci_hcd 0000:0c:00.0: Waiting for status stage event [ 195.920204] usb 1-3: default language 0x0409 [ 195.923197] xhci_hcd 0000:0c:00.0: Waiting for status stage event [ 195.928197] xhci_hcd 0000:0c:00.0: Waiting for status stage event [ 195.933200] xhci_hcd 0000:0c:00.0: Waiting for status stage event [ 195.935211] usb 1-3: udev 6, busnum 1, minor = 5 [ 195.935215] usb 1-3: New USB device found, idVendor=0fce, idProduct=0dde, bcdDevice= 1.00 [ 195.935219] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 195.935222] usb 1-3: Product: Android [ 195.935224] usb 1-3: Manufacturer: Google [ 195.935226] usb 1-3: SerialNumber: BH905BAH9E [ 195.935427] usb 1-3: usb_probe_device [ 195.935430] usb 1-3: configuration #1 chosen from 1 choice [ 195.935439] xhci_hcd 0000:0c:00.0: add ep 0x81, slot id 5, new drop flags = 0x0, new add flags = 0x8 [ 195.935447] xhci_hcd 0000:0c:00.0: add ep 0x1, slot id 5, new drop flags = 0x0, new add flags = 0xc [ 195.935449] xhci_hcd 0000:0c:00.0: xhci_check_bandwidth called for udev 00000000f4c62038 [ 195.935452] xhci_hcd 0000:0c:00.0: // Ding dong! [ 195.938503] xhci_hcd 0000:0c:00.0: Successful Endpoint Configure command [ 195.938523] xhci_hcd 0000:0c:00.0: // Ding dong! [ 195.938614] xhci_hcd 0000:0c:00.0: Stopped on No-op or Link TRB for slot 5 ep 2 [ 195.938705] xhci_hcd 0000:0c:00.0: // Ding dong! [ 195.943603] xhci_hcd 0000:0c:00.0: // Ding dong! [ 195.943686] xhci_hcd 0000:0c:00.0: Stopped on No-op or Link TRB for slot 5 ep 1 [ 195.943764] xhci_hcd 0000:0c:00.0: // Ding dong! [ 195.951200] usb 1-3: adding 1-3:1.0 (config #1, interface 0) [ 195.954200] xhci_hcd 0000:0c:00.0: Waiting for status stage event [ 200.327212] xhci_hcd 0000:0c:00.0: Get port status 1-5 read: 0xe63, return 0x507 [ 200.327233] xhci_hcd 0000:0c:00.0: clear USB_PORT_FEAT_SUSPEND [ 200.327236] xhci_hcd 0000:0c:00.0: PORTSC 0e63 [ 200.327239] xhci_hcd 0000:0c:00.0: Set port 1-5 link state, portsc: 0xe63, write 0x10fe1 [ 200.375216] xhci_hcd 0000:0c:00.0: Set port 1-5 link state, portsc: 0xfe3, write 0x10e01 [ 200.375236] usb 1-5: usb auto-resume [ 200.375486] xhci_hcd 0000:0c:00.0: Port change event, 1-5, id 10, portsc: 0x400e03 [ 200.375491] xhci_hcd 0000:0c:00.0: handle_port_status: starting usb1 port polling. [ 200.375507] hub 1-0:1.0: state 7 ports 12 chg 0000 evt 0020 [ 200.376723] xhci_hcd 0000:0c:00.0: underrun event on endpoint [ 200.376726] xhci_hcd 0000:0c:00.0: overrun event on endpoint [ 200.423215] xhci_hcd 0000:0c:00.0: Get port status 1-5 read: 0xe03, return 0x40503 [ 200.423230] xhci_hcd 0000:0c:00.0: clear port5 suspend/resume change, portsc: 0xe03 [ 200.443209] usb 1-5: Waited 0ms for CONNECT [ 200.443213] usb 1-5: finish resume [ 200.447237] xhci_hcd 0000:0c:00.0: Get port status 1-5 read: 0xe03, return 0x503 [ 200.447933] xhci_hcd 0000:0c:00.0: ep 0x81 - asked for 256 bytes, 248 bytes untransferred [ 200.567210] xhci_hcd 0000:0c:00.0: xhci_hub_status_data: stopping usb1 port polling [ 201.814693] xhci_hcd 0000:0c:00.0: ep 0x81 - asked for 256 bytes, 248 bytes untransferred [ 204.209316] xhci_hcd 0000:0c:00.0: // Ding dong! [ 204.209404] xhci_hcd 0000:0c:00.0: Stopped on No-op or Link TRB for slot 1 ep 20 [ 204.209565] xhci_hcd 0000:0c:00.0: Stopped on No-op or Link TRB for slot 1 ep 19 [ 204.209721] xhci_hcd 0000:0c:00.0: Stopped on No-op or Link TRB for slot 1 ep 6 [ 204.209873] xhci_hcd 0000:0c:00.0: Stopped on No-op or Link TRB for slot 1 ep 5 [ 204.210027] xhci_hcd 0000:0c:00.0: Stopped on No-op or Link TRB for slot 1 ep 4 [ 204.210187] xhci_hcd 0000:0c:00.0: Stopped on No-op or Link TRB for slot 1 ep 3 [ 204.210342] xhci_hcd 0000:0c:00.0: Stopped on No-op or Link TRB for slot 1 ep 2 [ 204.210503] xhci_hcd 0000:0c:00.0: Stopped on No-op or Link TRB for slot 1 ep 0 [ 204.210600] xhci_hcd 0000:0c:00.0: Set port 1-5 link state, portsc: 0xe03, write 0x10e61 [ 204.227291] usb 1-5: usb auto-suspend, wakeup 0

I then did the same with kernel 63a1f8454962 (the first bad one):

[ 196.399094] xhci_hcd 0000:0c:00.0: ep 0x82 - asked for 32 bytes, 26 bytes untransferred [ 197.103104] xhci_hcd 0000:0c:00.0: ep 0x82 - asked for 32 bytes, 26 bytes untransferred [ 197.881108] xhci_hcd 0000:0c:00.0: ep 0x82 - asked for 32 bytes, 26 bytes untransferred [ 198.021105] xhci_hcd 0000:0c:00.0: ep 0x82 - asked for 32 bytes, 26 bytes untransferred [ 225.430197] xhci_hcd 0000:0c:00.0: Port change event, 1-3, id 8, portsc: 0x202e1 [ 225.430202] xhci_hcd 0000:0c:00.0: handle_port_status: starting usb1 port polling. [ 225.430226] hub 1-0:1.0: state 7 ports 12 chg 0000 evt 0008 [ 225.430233] xhci_hcd 0000:0c:00.0: Get port status 1-3 read: 0x202e1, return 0x10101 [ 225.430244] xhci_hcd 0000:0c:00.0: clear port3 connect change, portsc: 0x2e1 [ 225.430250] usb usb1-port3: status 0101, change 0001, 12 Mb/s [ 225.430254] xhci_hcd 0000:0c:00.0: Get port status 1-3 read: 0x2e1, return 0x101 [ 225.464705] xhci_hcd 0000:0c:00.0: Get port status 1-3 read: 0x2e1, return 0x101 [ 225.500707] xhci_hcd 0000:0c:00.0: Get port status 1-3 read: 0x2e1, return 0x101 [ 225.536707] xhci_hcd 0000:0c:00.0: Get port status 1-3 read: 0x2e1, return 0x101 [ 225.572708] xhci_hcd 0000:0c:00.0: Get port status 1-3 read: 0x2e1, return 0x101 [ 225.572719] usb usb1-port3: debounce total 100ms stable 100ms status 0x101 [ 225.572724] xhci_hcd 0000:0c:00.0: // Ding dong! [ 225.572826] xhci_hcd 0000:0c:00.0: Slot 5 output ctx = 0x0x00000000fff5e000 (dma) [ 225.572838] xhci_hcd 0000:0c:00.0: Slot 5 input ctx = 0x0x00000000fff54000 (dma) [ 225.572846] xhci_hcd 0000:0c:00.0: Set slot id 5 dcbaa entry 000000003fadcb3f to 0xfff5e000 [ 225.572888] xhci_hcd 0000:0c:00.0: set port reset, actual port 1-3 status = 0x2e1 [ 225.616706] xhci_hcd 0000:0c:00.0: xhci_hub_status_data: stopping usb1 port polling [ 225.640709] xhci_hcd 0000:0c:00.0: Get port status 1-3 read: 0x331, return 0x111 [ 225.640720] usb usb1-port3: not reset yet, waiting 60ms [ 225.647922] xhci_hcd 0000:0c:00.0: Port change event, 1-3, id 8, portsc: 0x200e03 [ 225.647927] xhci_hcd 0000:0c:00.0: handle_port_status: starting usb1 port polling. [ 225.708710] xhci_hcd 0000:0c:00.0: Get port status 1-3 read: 0x200e03, return 0x100503 [ 225.708723] xhci_hcd 0000:0c:00.0: clear port3 reset change, portsc: 0xe03 [ 225.768711] usb 1-3: new high-speed USB device number 6 using xhci_hcd [ 225.768716] xhci_hcd 0000:0c:00.0: Slot ID 5: HW portnum 7, hcd portnum 2 [ 225.768718] xhci_hcd 0000:0c:00.0: udev->tt = 0000000000000000 [ 225.768720] xhci_hcd 0000:0c:00.0: udev->ttport = 0x0 [ 225.768722] xhci_hcd 0000:0c:00.0: // Ding dong! [ 225.769231] xhci_hcd 0000:0c:00.0: Successful setup context command [ 225.769236] xhci_hcd 0000:0c:00.0: Op regs DCBAA ptr = 0x000000fffff000 [ 225.769239] xhci_hcd 0000:0c:00.0: Slot ID 5 dcbaa entry @000000003fadcb3f = 0x000000fff5e000 [ 225.769241] xhci_hcd 0000:0c:00.0: Output Context DMA address = 0xfff5e000 [ 225.769243] xhci_hcd 0000:0c:00.0: Internal device address = 0 [ 225.771743] xhci_hcd 0000:0c:00.0: Waiting for status stage event [ 225.773750] xhci_hcd 0000:0c:00.0: set port reset, actual port 1-3 status = 0xe03 [ 225.840714] xhci_hcd 0000:0c:00.0: Get port status 1-3 read: 0x331, return 0x111 [ 225.840726] usb usb1-port3: not reset yet, waiting 60ms [ 225.848802] xhci_hcd 0000:0c:00.0: Port change event, 1-3, id 8, portsc: 0x200e03 [ 225.848807] xhci_hcd 0000:0c:00.0: handle_port_status: starting usb1 port polling. [ 225.908732] xhci_hcd 0000:0c:00.0: Get port status 1-3 read: 0x200e03, return 0x100503 [ 225.908744] xhci_hcd 0000:0c:00.0: clear port3 reset change, portsc: 0xe03 [ 225.968714] xhci_hcd 0000:0c:00.0: Resetting device with slot ID 5 [ 225.968718] xhci_hcd 0000:0c:00.0: // Ding dong! [ 225.968757] xhci_hcd 0000:0c:00.0: Completed reset device command. [ 225.968762] xhci_hcd 0000:0c:00.0: Can't reset device (slot ID 5) in default state [ 225.968764] xhci_hcd 0000:0c:00.0: Not freeing device rings. [ 225.968767] xhci_hcd 0000:0c:00.0: // Ding dong! [ 225.969479] xhci_hcd 0000:0c:00.0: Successful setup address command [ 225.969483] xhci_hcd 0000:0c:00.0: Op regs DCBAA ptr = 0x000000fffff000 [ 225.969485] xhci_hcd 0000:0c:00.0: Slot ID 5 dcbaa entry @000000003fadcb3f = 0x000000fff5e000 [ 225.969488] xhci_hcd 0000:0c:00.0: Output Context DMA address = 0xfff5e000 [ 225.969490] xhci_hcd 0000:0c:00.0: Internal device address = 5 [ 226.002756] xhci_hcd 0000:0c:00.0: enable port 3 USB2 hardware LPM [ 226.002765] xhci_hcd 0000:0c:00.0: Set up evaluate context for LPM MEL change. [ 226.002769] xhci_hcd 0000:0c:00.0: // Ding dong! [ 226.003125] xhci_hcd 0000:0c:00.0: Successful evaluate context command [ 226.015745] xhci_hcd 0000:0c:00.0: Waiting for status stage event [ 226.017754] usb 1-3: default language 0x0409 [ 226.020737] xhci_hcd 0000:0c:00.0: Waiting for status stage event [ 226.025742] xhci_hcd 0000:0c:00.0: Waiting for status stage event [ 226.030745] xhci_hcd 0000:0c:00.0: Waiting for status stage event [ 226.032754] usb 1-3: udev 6, busnum 1, minor = 5 [ 226.032759] usb 1-3: New USB device found, idVendor=0fce, idProduct=0dde, bcdDevice= 1.00 [ 226.032761] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 226.032763] usb 1-3: Product: Android [ 226.032765] usb 1-3: Manufacturer: Google [ 226.032766] usb 1-3: SerialNumber: BH905BAH9E [ 226.032972] usb 1-3: usb_probe_device [ 226.032974] usb 1-3: configuration #1 chosen from 1 choice [ 226.032983] xhci_hcd 0000:0c:00.0: add ep 0x81, slot id 5, new drop flags = 0x0, new add flags = 0x8 [ 226.032990] xhci_hcd 0000:0c:00.0: add ep 0x1, slot id 5, new drop flags = 0x0, new add flags = 0xc [ 226.032993] xhci_hcd 0000:0c:00.0: xhci_check_bandwidth called for udev 00000000f07964e8 [ 226.032996] xhci_hcd 0000:0c:00.0: // Ding dong! [ 226.036041] xhci_hcd 0000:0c:00.0: Successful Endpoint Configure command [ 226.036058] xhci_hcd 0000:0c:00.0: // Ding dong! [ 226.036142] xhci_hcd 0000:0c:00.0: Stopped on No-op or Link TRB for slot 5 ep 2 [ 226.036227] xhci_hcd 0000:0c:00.0: // Ding dong! [ 226.041132] xhci_hcd 0000:0c:00.0: // Ding dong! [ 226.041222] xhci_hcd 0000:0c:00.0: Stopped on No-op or Link TRB for slot 5 ep 1 [ 226.041311] xhci_hcd 0000:0c:00.0: // Ding dong! [ 226.048744] usb 1-3: adding 1-3:1.0 (config #1, interface 0) [ 226.051745] xhci_hcd 0000:0c:00.0: Waiting for status stage event [ 226.112724] xhci_hcd 0000:0c:00.0: xhci_hub_status_data: stopping usb1 port polling [ 229.214292] xhci_hcd 0000:0c:00.0: ep 0x82 - asked for 32 bytes, 26 bytes untransferred [ 229.358289] xhci_hcd 0000:0c:00.0: ep 0x82 - asked for 32 bytes, 26 bytes untransferred [ 234.642446] xhci_hcd 0000:0c:00.0: Get port status 1-5 read: 0xe63, return 0x507 [ 234.642466] xhci_hcd 0000:0c:00.0: clear USB_PORT_FEAT_SUSPEND [ 234.642468] xhci_hcd 0000:0c:00.0: PORTSC 0e63 [ 234.642470] xhci_hcd 0000:0c:00.0: Set port 1-5 link state, portsc: 0xe63, write 0x10fe1 [ 234.688896] xhci_hcd 0000:0c:00.0: Set port 1-5 link state, portsc: 0xfe3, write 0x10e01 [ 234.688933] usb 1-5: usb auto-resume [ 234.689161] xhci_hcd 0000:0c:00.0: Port change event, 1-5, id 10, portsc: 0x400e03 [ 234.689166] xhci_hcd 0000:0c:00.0: handle_port_status: starting usb1 port polling. [ 234.689189] hub 1-0:1.0: state 7 ports 12 chg 0000 evt 0020 [ 234.690282] xhci_hcd 0000:0c:00.0: underrun event on endpoint [ 234.690285] xhci_hcd 0000:0c:00.0: overrun event on endpoint [ 234.736898] xhci_hcd 0000:0c:00.0: Get port status 1-5 read: 0xe03, return 0x40503 [ 234.736914] xhci_hcd 0000:0c:00.0: clear port5 suspend/resume change, portsc: 0xe03 [ 234.756897] usb 1-5: Waited 0ms for CONNECT [ 234.756901] usb 1-5: finish resume [ 234.761806] xhci_hcd 0000:0c:00.0: Get port status 1-5 read: 0xe03, return 0x503 [ 234.762810] xhci_hcd 0000:0c:00.0: ep 0x81 - asked for 256 bytes, 248 bytes untransferred [ 234.792899] xhci_hcd 0000:0c:00.0: xhci_hub_status_data: stopping usb1 port polling [ 236.353577] xhci_hcd 0000:0c:00.0: ep 0x81 - asked for 256 bytes, 237 bytes untransferred [ 238.852825] xhci_hcd 0000:0c:00.0: // Ding dong! [ 238.852917] xhci_hcd 0000:0c:00.0: Stopped on No-op or Link TRB for slot 1 ep 20 [ 238.853081] xhci_hcd 0000:0c:00.0: Stopped on No-op or Link TRB for slot 1 ep 19 [ 238.853229] xhci_hcd 0000:0c:00.0: Stopped on No-op or Link TRB for slot 1 ep 6 [ 238.853388] xhci_hcd 0000:0c:00.0: Stopped on No-op or Link TRB for slot 1 ep 5 [ 238.853541] xhci_hcd 0000:0c:00.0: Stopped on No-op or Link TRB for slot 1 ep 4 [ 238.853698] xhci_hcd 0000:0c:00.0: Stopped on No-op or Link TRB for slot 1 ep 3 [ 238.853854] xhci_hcd 0000:0c:00.0: Stopped on No-op or Link TRB for slot 1 ep 2 [ 238.854015] xhci_hcd 0000:0c:00.0: Stopped on No-op or Link TRB for slot 1 ep 0 [ 238.854113] xhci_hcd 0000:0c:00.0: Set port 1-5 link state, portsc: 0xe03, write 0x10e61 [ 238.872988] usb 1-5: usb auto-suspend, wakeup 0 [ 240.855359] xhci_hcd 0000:0c:00.0: ep 0x82 - asked for 32 bytes, 26 bytes untransferred [ 241.009359] xhci_hcd 0000:0c:00.0: ep 0x82 - asked for 32 bytes, 26 bytes untransferred