Apparently the chain bit in Link TRB is not set. I don't know what spec version your host controller is based on, but I suggest you try module param link_quirk. On Thu, Oct 29, 2009 at 2:37 PM, Madhavi Manchala <madhavi.lscsi@xxxxxxxxx> wrote: > > On Wed, Oct 28, 2009 at 9:55 PM, Sarah Sharp > <sarah.a.sharp@xxxxxxxxxxxxxxx> wrote: > > Dear Greg / Sarah, > > Thanks for your information. > > >> You might need to enable CONFIG_USB_DEBUG, and/or turn on dynamic > >> debugging as well to get the messages sent to your kernel log. > > > > Please turn on the xHCI driver debugging as well, > > CONFIG_USB_XHCI_HCD_DEBUGGING. > > I have built the kernel with debug messages enabled. Even before > inserting the USB 2.0 MS device, the following debug messages are > continuously coming. > > [ 486.988021] hub 9-0:1.0: hub_suspend > [ 486.988030] usb usb9: bus auto-suspend > [ 486.988033] usb usb9: bus suspend fail, err -2 > [ 486.988036] hub 9-0:1.0: hub_resume > [ 486.988043] xhci_hcd 0000:03:00.0: get port status, actual port 0 > status = 0x2a0 > [ 486.988046] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 486.988052] xhci_hcd 0000:03:00.0: get port status, actual port 1 > status = 0x2a0 > [ 486.988055] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 486.988065] hub 9-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 488.660009] xhci_hcd 0000:03:00.0: Poll event ring: 47165 > [ 488.660014] xhci_hcd 0000:03:00.0: op reg status = 0x0 > [ 488.660018] xhci_hcd 0000:03:00.0: ir_set 0 pending = 0x2 > [ 488.660021] xhci_hcd 0000:03:00.0: No-op commands handled = 0 > [ 488.660024] xhci_hcd 0000:03:00.0: HC error bitmask = 0x0 > [ 488.660026] xhci_hcd 0000:03:00.0: Event ring: > [ 488.660030] xhci_hcd 0000:03:00.0: @037a9400 00000000 00000000 > 00000000 00000000 > [ 488.660034] xhci_hcd 0000:03:00.0: @037a9410 00000000 00000000 > 00000000 00000000 > [ 488.660037] xhci_hcd 0000:03:00.0: @037a9420 00000000 00000000 > 00000000 00000000 > [ 488.660040] xhci_hcd 0000:03:00.0: @037a9430 00000000 00000000 > 00000000 00000000 > [ 488.660044] xhci_hcd 0000:03:00.0: @037a9440 00000000 00000000 > 00000000 00000000 > [ 488.660048] xhci_hcd 0000:03:00.0: @037a9450 00000000 00000000 > 00000000 00000000 > [ 488.660051] xhci_hcd 0000:03:00.0: @037a9460 00000000 00000000 > 00000000 00000000 > [ 488.660055] xhci_hcd 0000:03:00.0: @037a9470 00000000 00000000 > 00000000 00000000 > [ 488.660058] xhci_hcd 0000:03:00.0: @037a9480 00000000 00000000 > 00000000 00000000 > [ 488.660062] xhci_hcd 0000:03:00.0: @037a9490 00000000 00000000 > 00000000 00000000 > [ 488.660065] xhci_hcd 0000:03:00.0: @037a94a0 00000000 00000000 > 00000000 00000000 > [ 488.660068] xhci_hcd 0000:03:00.0: @037a94b0 00000000 00000000 > 00000000 00000000 > [ 488.660072] xhci_hcd 0000:03:00.0: @037a94c0 00000000 00000000 > 00000000 00000000 > [ 488.660076] xhci_hcd 0000:03:00.0: @037a94d0 00000000 00000000 > 00000000 00000000 > [ 488.660079] xhci_hcd 0000:03:00.0: @037a94e0 00000000 00000000 > 00000000 00000000 > [ 488.660082] xhci_hcd 0000:03:00.0: @037a94f0 00000000 00000000 > 00000000 00000000 > [ 488.660086] xhci_hcd 0000:03:00.0: @037a9500 00000000 00000000 > 00000000 00000000 > [ 488.660089] xhci_hcd 0000:03:00.0: @037a9510 00000000 00000000 > 00000000 00000000 > [ 488.660093] xhci_hcd 0000:03:00.0: @037a9520 00000000 00000000 > 00000000 00000000 > [ 488.660096] xhci_hcd 0000:03:00.0: @037a9530 00000000 00000000 > 00000000 00000000 > [ 488.660100] xhci_hcd 0000:03:00.0: @037a9540 00000000 00000000 > 00000000 00000000 > [ 488.660103] xhci_hcd 0000:03:00.0: @037a9550 00000000 00000000 > 00000000 00000000 > [ 488.660107] xhci_hcd 0000:03:00.0: @037a9560 00000000 00000000 > 00000000 00000000 > [ 488.660110] xhci_hcd 0000:03:00.0: @037a9570 00000000 00000000 > 00000000 00000000 > [ 488.660113] xhci_hcd 0000:03:00.0: @037a9580 00000000 00000000 > 00000000 00000000 > [ 488.660117] xhci_hcd 0000:03:00.0: @037a9590 00000000 00000000 > 00000000 00000000 > [ 488.660121] xhci_hcd 0000:03:00.0: @037a95a0 00000000 00000000 > 00000000 00000000 > [ 488.660124] xhci_hcd 0000:03:00.0: @037a95b0 00000000 00000000 > 00000000 00000000 > [ 488.660127] xhci_hcd 0000:03:00.0: @037a95c0 00000000 00000000 > 00000000 00000000 > [ 488.660131] xhci_hcd 0000:03:00.0: @037a95d0 00000000 00000000 > 00000000 00000000 > [ 488.660135] xhci_hcd 0000:03:00.0: @037a95e0 00000000 00000000 > 00000000 00000000 > [ 488.660138] xhci_hcd 0000:03:00.0: @037a95f0 00000000 00000000 > 00000000 00000000 > [ 488.660142] xhci_hcd 0000:03:00.0: @037a9600 00000000 00000000 > 00000000 00000000 > [ 488.660145] xhci_hcd 0000:03:00.0: @037a9610 00000000 00000000 > 00000000 00000000 > [ 488.660154] xhci_hcd 0000:03:00.0: @037a9620 00000000 00000000 > 00000000 00000000 > [ 488.660156] xhci_hcd 0000:03:00.0: @037a9630 00000000 00000000 > 00000000 00000000 > [ 488.660158] xhci_hcd 0000:03:00.0: @037a9640 00000000 00000000 > 00000000 00000000 > [ 488.660160] xhci_hcd 0000:03:00.0: @037a9650 00000000 00000000 > 00000000 00000000 > [ 488.660162] xhci_hcd 0000:03:00.0: @037a9660 00000000 00000000 > 00000000 00000000 > [ 488.660164] xhci_hcd 0000:03:00.0: @037a9670 00000000 00000000 > 00000000 00000000 > [ 488.660166] xhci_hcd 0000:03:00.0: @037a9680 00000000 00000000 > 00000000 00000000 > [ 488.660167] xhci_hcd 0000:03:00.0: @037a9690 00000000 00000000 > 00000000 00000000 > [ 488.660169] xhci_hcd 0000:03:00.0: @037a96a0 00000000 00000000 > 00000000 00000000 > [ 488.660171] xhci_hcd 0000:03:00.0: @037a96b0 00000000 00000000 > 00000000 00000000 > [ 488.660173] xhci_hcd 0000:03:00.0: @037a96c0 00000000 00000000 > 00000000 00000000 > [ 488.660175] xhci_hcd 0000:03:00.0: @037a96d0 00000000 00000000 > 00000000 00000000 > [ 488.660177] xhci_hcd 0000:03:00.0: @037a96e0 00000000 00000000 > 00000000 00000000 > [ 488.660179] xhci_hcd 0000:03:00.0: @037a96f0 00000000 00000000 > 00000000 00000000 > [ 488.660181] xhci_hcd 0000:03:00.0: @037a9700 00000000 00000000 > 00000000 00000000 > [ 488.660183] xhci_hcd 0000:03:00.0: @037a9710 00000000 00000000 > 00000000 00000000 > [ 488.660184] xhci_hcd 0000:03:00.0: @037a9720 00000000 00000000 > 00000000 00000000 > [ 488.660186] xhci_hcd 0000:03:00.0: @037a9730 00000000 00000000 > 00000000 00000000 > [ 488.660188] xhci_hcd 0000:03:00.0: @037a9740 00000000 00000000 > 00000000 00000000 > [ 488.660190] xhci_hcd 0000:03:00.0: @037a9750 00000000 00000000 > 00000000 00000000 > [ 488.660192] xhci_hcd 0000:03:00.0: @037a9760 00000000 00000000 > 00000000 00000000 > [ 488.660194] xhci_hcd 0000:03:00.0: @037a9770 00000000 00000000 > 00000000 00000000 > [ 488.660196] xhci_hcd 0000:03:00.0: @037a9780 00000000 00000000 > 00000000 00000000 > [ 488.660198] xhci_hcd 0000:03:00.0: @037a9790 00000000 00000000 > 00000000 00000000 > [ 488.660199] xhci_hcd 0000:03:00.0: @037a97a0 00000000 00000000 > 00000000 00000000 > [ 488.660201] xhci_hcd 0000:03:00.0: @037a97b0 00000000 00000000 > 00000000 00000000 > [ 488.660203] xhci_hcd 0000:03:00.0: @037a97c0 00000000 00000000 > 00000000 00000000 > [ 488.660205] xhci_hcd 0000:03:00.0: @037a97d0 00000000 00000000 > 00000000 00000000 > [ 488.660207] xhci_hcd 0000:03:00.0: @037a97e0 00000000 00000000 > 00000000 00000000 > [ 488.660209] xhci_hcd 0000:03:00.0: @037a97f0 00000000 00000000 > 00000000 00000000 > [ 488.660211] xhci_hcd 0000:03:00.0: Ring deq = c37a9400 (virt), > 0x37a9400 (dma) > [ 488.660213] xhci_hcd 0000:03:00.0: Ring deq updated 0 times > [ 488.660214] xhci_hcd 0000:03:00.0: Ring enq = c37a9400 (virt), > 0x37a9400 (dma) > [ 488.660216] xhci_hcd 0000:03:00.0: Ring enq updated 0 times > [ 488.660220] xhci_hcd 0000:03:00.0: ERST deq = 64'h37a9400 > [ 488.660221] xhci_hcd 0000:03:00.0: Command ring: > [ 488.660223] xhci_hcd 0000:03:00.0: @037a9000 00000000 00000000 > 00000000 00000000 > [ 488.660225] xhci_hcd 0000:03:00.0: @037a9010 00000000 00000000 > 00000000 00000000 > [ 488.660227] xhci_hcd 0000:03:00.0: @037a9020 00000000 00000000 > 00000000 00000000 > [ 488.660229] xhci_hcd 0000:03:00.0: @037a9030 00000000 00000000 > 00000000 00000000 > [ 488.660231] xhci_hcd 0000:03:00.0: @037a9040 00000000 00000000 > 00000000 00000000 > [ 488.660232] xhci_hcd 0000:03:00.0: @037a9050 00000000 00000000 > 00000000 00000000 > [ 488.660234] xhci_hcd 0000:03:00.0: @037a9060 00000000 00000000 > 00000000 00000000 > [ 488.660236] xhci_hcd 0000:03:00.0: @037a9070 00000000 00000000 > 00000000 00000000 > [ 488.660238] xhci_hcd 0000:03:00.0: @037a9080 00000000 00000000 > 00000000 00000000 > [ 488.660240] xhci_hcd 0000:03:00.0: @037a9090 00000000 00000000 > 00000000 00000000 > [ 488.660242] xhci_hcd 0000:03:00.0: @037a90a0 00000000 00000000 > 00000000 00000000 > [ 488.660244] xhci_hcd 0000:03:00.0: @037a90b0 00000000 00000000 > 00000000 00000000 > [ 488.660246] xhci_hcd 0000:03:00.0: @037a90c0 00000000 00000000 > 00000000 00000000 > [ 488.660248] xhci_hcd 0000:03:00.0: @037a90d0 00000000 00000000 > 00000000 00000000 > [ 488.660250] xhci_hcd 0000:03:00.0: @037a90e0 00000000 00000000 > 00000000 00000000 > [ 488.660252] xhci_hcd 0000:03:00.0: @037a90f0 00000000 00000000 > 00000000 00000000 > [ 488.660254] xhci_hcd 0000:03:00.0: @037a9100 00000000 00000000 > 00000000 00000000 > [ 488.660255] xhci_hcd 0000:03:00.0: @037a9110 00000000 00000000 > 00000000 00000000 > [ 488.660257] xhci_hcd 0000:03:00.0: @037a9120 00000000 00000000 > 00000000 00000000 > [ 488.660259] xhci_hcd 0000:03:00.0: @037a9130 00000000 00000000 > 00000000 00000000 > [ 488.660261] xhci_hcd 0000:03:00.0: @037a9140 00000000 00000000 > 00000000 00000000 > [ 488.660263] xhci_hcd 0000:03:00.0: @037a9150 00000000 00000000 > 00000000 00000000 > [ 488.660265] xhci_hcd 0000:03:00.0: @037a9160 00000000 00000000 > 00000000 00000000 > [ 488.660267] xhci_hcd 0000:03:00.0: @037a9170 00000000 00000000 > 00000000 00000000 > [ 488.660269] xhci_hcd 0000:03:00.0: @037a9180 00000000 00000000 > 00000000 00000000 > [ 488.660271] xhci_hcd 0000:03:00.0: @037a9190 00000000 00000000 > 00000000 00000000 > [ 488.660273] xhci_hcd 0000:03:00.0: @037a91a0 00000000 00000000 > 00000000 00000000 > [ 488.660275] xhci_hcd 0000:03:00.0: @037a91b0 00000000 00000000 > 00000000 00000000 > [ 488.660276] xhci_hcd 0000:03:00.0: @037a91c0 00000000 00000000 > 00000000 00000000 > [ 488.660278] xhci_hcd 0000:03:00.0: @037a91d0 00000000 00000000 > 00000000 00000000 > [ 488.660280] xhci_hcd 0000:03:00.0: @037a91e0 00000000 00000000 > 00000000 00000000 > [ 488.660282] xhci_hcd 0000:03:00.0: @037a91f0 00000000 00000000 > 00000000 00000000 > [ 488.660284] xhci_hcd 0000:03:00.0: @037a9200 00000000 00000000 > 00000000 00000000 > [ 488.660286] xhci_hcd 0000:03:00.0: @037a9210 00000000 00000000 > 00000000 00000000 > [ 488.660288] xhci_hcd 0000:03:00.0: @037a9220 00000000 00000000 > 00000000 00000000 > [ 488.660289] xhci_hcd 0000:03:00.0: @037a9230 00000000 00000000 > 00000000 00000000 > [ 488.660291] xhci_hcd 0000:03:00.0: @037a9240 00000000 00000000 > 00000000 00000000 > [ 488.660293] xhci_hcd 0000:03:00.0: @037a9250 00000000 00000000 > 00000000 00000000 > [ 488.660295] xhci_hcd 0000:03:00.0: @037a9260 00000000 00000000 > 00000000 00000000 > [ 488.660297] xhci_hcd 0000:03:00.0: @037a9270 00000000 00000000 > 00000000 00000000 > [ 488.660299] xhci_hcd 0000:03:00.0: @037a9280 00000000 00000000 > 00000000 00000000 > [ 488.660301] xhci_hcd 0000:03:00.0: @037a9290 00000000 00000000 > 00000000 00000000 > [ 488.660303] xhci_hcd 0000:03:00.0: @037a92a0 00000000 00000000 > 00000000 00000000 > [ 488.660305] xhci_hcd 0000:03:00.0: @037a92b0 00000000 00000000 > 00000000 00000000 > [ 488.660306] xhci_hcd 0000:03:00.0: @037a92c0 00000000 00000000 > 00000000 00000000 > [ 488.660308] xhci_hcd 0000:03:00.0: @037a92d0 00000000 00000000 > 00000000 00000000 > [ 488.660310] xhci_hcd 0000:03:00.0: @037a92e0 00000000 00000000 > 00000000 00000000 > [ 488.660312] xhci_hcd 0000:03:00.0: @037a92f0 00000000 00000000 > 00000000 00000000 > [ 488.660314] xhci_hcd 0000:03:00.0: @037a9300 00000000 00000000 > 00000000 00000000 > [ 488.660316] xhci_hcd 0000:03:00.0: @037a9310 00000000 00000000 > 00000000 00000000 > [ 488.660318] xhci_hcd 0000:03:00.0: @037a9320 00000000 00000000 > 00000000 00000000 > [ 488.660320] xhci_hcd 0000:03:00.0: @037a9330 00000000 00000000 > 00000000 00000000 > [ 488.660322] xhci_hcd 0000:03:00.0: @037a9340 00000000 00000000 > 00000000 00000000 > [ 488.660323] xhci_hcd 0000:03:00.0: @037a9350 00000000 00000000 > 00000000 00000000 > [ 488.660325] xhci_hcd 0000:03:00.0: @037a9360 00000000 00000000 > 00000000 00000000 > [ 488.660327] xhci_hcd 0000:03:00.0: @037a9370 00000000 00000000 > 00000000 00000000 > [ 488.660329] xhci_hcd 0000:03:00.0: @037a9380 00000000 00000000 > 00000000 00000000 > [ 488.660331] xhci_hcd 0000:03:00.0: @037a9390 00000000 00000000 > 00000000 00000000 > [ 488.660333] xhci_hcd 0000:03:00.0: @037a93a0 00000000 00000000 > 00000000 00000000 > [ 488.660335] xhci_hcd 0000:03:00.0: @037a93b0 00000000 00000000 > 00000000 00000000 > [ 488.660337] xhci_hcd 0000:03:00.0: @037a93c0 00000000 00000000 > 00000000 00000000 > [ 488.660339] xhci_hcd 0000:03:00.0: @037a93d0 00000000 00000000 > 00000000 00000000 > [ 488.660341] xhci_hcd 0000:03:00.0: @037a93e0 00000000 00000000 > 00000000 00000000 > [ 488.660343] xhci_hcd 0000:03:00.0: @037a93f0 037a9000 00000000 > 00000000 00001802 > [ 488.660344] xhci_hcd 0000:03:00.0: Ring deq = c37a9000 (virt), > 0x37a9000 (dma) > [ 488.660346] xhci_hcd 0000:03:00.0: Ring deq updated 0 times > [ 488.660348] xhci_hcd 0000:03:00.0: Ring enq = c37a9000 (virt), > 0x37a9000 (dma) > [ 488.660349] xhci_hcd 0000:03:00.0: Ring enq updated 0 times > [ 488.660353] xhci_hcd 0000:03:00.0: // xHC command ring deq ptr low > bits + flags = @00000000 > [ 488.660355] xhci_hcd 0000:03:00.0: // xHC command ring deq ptr high > bits = @00000000 > [ 489.988046] hub 9-0:1.0: hub_suspend > [ 489.988053] usb usb9: bus auto-suspend > [ 489.988056] usb usb9: bus suspend fail, err -2 > [ 489.988059] hub 9-0:1.0: hub_resume > [ 489.988066] xhci_hcd 0000:03:00.0: get port status, actual port 0 > status = 0x2a0 > [ 489.988069] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 489.988075] xhci_hcd 0000:03:00.0: get port status, actual port 1 > status = 0x2a0 > [ 489.988078] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 489.988087] hub 9-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 492.988016] hub 9-0:1.0: hub_suspend > [ 492.988023] usb usb9: bus auto-suspend > [ 492.988026] usb usb9: bus suspend fail, err -2 > [ 492.988028] hub 9-0:1.0: hub_resume > [ 492.988035] xhci_hcd 0000:03:00.0: get port status, actual port 0 > status = 0x2a0 > [ 492.988038] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 492.988044] xhci_hcd 0000:03:00.0: get port status, actual port 1 > status = 0x2a0 > [ 492.988046] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 492.988056] hub 9-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 495.988042] hub 9-0:1.0: hub_suspend > [ 495.988048] usb usb9: bus auto-suspend > [ 495.988051] usb usb9: bus suspend fail, err -2 > [ 495.988054] hub 9-0:1.0: hub_resume > [ 495.988060] xhci_hcd 0000:03:00.0: get port status, actual port 0 > status = 0x2a0 > [ 495.988063] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 495.988069] xhci_hcd 0000:03:00.0: get port status, actual port 1 > status = 0x2a0 > [ 495.988072] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 495.988081] hub 9-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 498.988015] hub 9-0:1.0: hub_suspend > [ 498.988021] usb usb9: bus auto-suspend > [ 498.988024] usb usb9: bus suspend fail, err -2 > [ 498.988027] hub 9-0:1.0: hub_resume > [ 498.988033] xhci_hcd 0000:03:00.0: get port status, actual port 0 > status = 0x2a0 > [ 498.988036] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 498.988042] xhci_hcd 0000:03:00.0: get port status, actual port 1 > status = 0x2a0 > [ 498.988045] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 498.988053] hub 9-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 501.988016] hub 9-0:1.0: hub_suspend > [ 501.988022] usb usb9: bus auto-suspend > [ 501.988025] usb usb9: bus suspend fail, err -2 > [ 501.988027] hub 9-0:1.0: hub_resume > [ 501.988033] xhci_hcd 0000:03:00.0: get port status, actual port 0 > status = 0x2a0 > [ 501.988036] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 501.988042] xhci_hcd 0000:03:00.0: get port status, actual port 1 > status = 0x2a0 > [ 501.988045] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 501.988054] hub 9-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 504.988016] hub 9-0:1.0: hub_suspend > [ 504.988022] usb usb9: bus auto-suspend > [ 504.988025] usb usb9: bus suspend fail, err -2 > [ 504.988028] hub 9-0:1.0: hub_resume > [ 504.988034] xhci_hcd 0000:03:00.0: get port status, actual port 0 > status = 0x2a0 > [ 504.988037] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 504.988042] xhci_hcd 0000:03:00.0: get port status, actual port 1 > status = 0x2a0 > [ 504.988045] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 504.988054] hub 9-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 507.988046] hub 9-0:1.0: hub_suspend > [ 507.988053] usb usb9: bus auto-suspend > [ 507.988057] usb usb9: bus suspend fail, err -2 > [ 507.988059] hub 9-0:1.0: hub_resume > [ 507.988066] xhci_hcd 0000:03:00.0: get port status, actual port 0 > status = 0x2a0 > [ 507.988069] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 507.988075] xhci_hcd 0000:03:00.0: get port status, actual port 1 > status = 0x2a0 > [ 507.988078] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 507.988087] hub 9-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 510.988026] hub 9-0:1.0: hub_suspend > [ 510.988035] usb usb9: bus auto-suspend > [ 510.988039] usb usb9: bus suspend fail, err -2 > [ 510.988041] hub 9-0:1.0: hub_resume > [ 510.988049] xhci_hcd 0000:03:00.0: get port status, actual port 0 > status = 0x2a0 > [ 510.988052] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 510.988058] xhci_hcd 0000:03:00.0: get port status, actual port 1 > status = 0x2a0 > [ 510.988061] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 510.988071] hub 9-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 513.988019] hub 9-0:1.0: hub_suspend > [ 513.988027] usb usb9: bus auto-suspend > [ 513.988031] usb usb9: bus suspend fail, err -2 > [ 513.988033] hub 9-0:1.0: hub_resume > [ 513.988040] xhci_hcd 0000:03:00.0: get port status, actual port 0 > status = 0x2a0 > [ 513.988043] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 513.988049] xhci_hcd 0000:03:00.0: get port status, actual port 1 > status = 0x2a0 > [ 513.988052] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 513.988062] hub 9-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 516.988018] hub 9-0:1.0: hub_suspend > [ 516.988026] usb usb9: bus auto-suspend > [ 516.988029] usb usb9: bus suspend fail, err -2 > [ 516.988031] hub 9-0:1.0: hub_resume > [ 516.988038] xhci_hcd 0000:03:00.0: get port status, actual port 0 > status = 0x2a0 > [ 516.988041] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 516.988047] xhci_hcd 0000:03:00.0: get port status, actual port 1 > status = 0x2a0 > [ 516.988050] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 516.988060] hub 9-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 519.988050] hub 9-0:1.0: hub_suspend > [ 519.988057] usb usb9: bus auto-suspend > [ 519.988061] usb usb9: bus suspend fail, err -2 > [ 519.988064] hub 9-0:1.0: hub_resume > [ 519.988070] xhci_hcd 0000:03:00.0: get port status, actual port 0 > status = 0x2a0 > [ 519.988073] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 519.988080] xhci_hcd 0000:03:00.0: get port status, actual port 1 > status = 0x2a0 > [ 519.988082] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 519.988092] hub 9-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 522.988017] hub 9-0:1.0: hub_suspend > [ 522.988026] usb usb9: bus auto-suspend > [ 522.988029] usb usb9: bus suspend fail, err -2 > [ 522.988032] hub 9-0:1.0: hub_resume > [ 522.988040] xhci_hcd 0000:03:00.0: get port status, actual port 0 > status = 0x2a0 > [ 522.988043] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 522.988049] xhci_hcd 0000:03:00.0: get port status, actual port 1 > status = 0x2a0 > [ 522.988052] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 522.988062] hub 9-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 525.988266] hub 9-0:1.0: hub_suspend > [ 525.988274] usb usb9: bus auto-suspend > [ 525.988277] usb usb9: bus suspend fail, err -2 > [ 525.988280] hub 9-0:1.0: hub_resume > [ 525.988286] xhci_hcd 0000:03:00.0: get port status, actual port 0 > status = 0x2a0 > [ 525.988290] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 525.988296] xhci_hcd 0000:03:00.0: get port status, actual port 1 > status = 0x2a0 > [ 525.988299] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 525.988308] hub 9-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 528.988021] hub 9-0:1.0: hub_suspend > [ 528.988029] usb usb9: bus auto-suspend > [ 528.988032] usb usb9: bus suspend fail, err -2 > [ 528.988035] hub 9-0:1.0: hub_resume > [ 528.988041] xhci_hcd 0000:03:00.0: get port status, actual port 0 > status = 0x2a0 > [ 528.988044] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 528.988050] xhci_hcd 0000:03:00.0: get port status, actual port 1 > status = 0x2a0 > [ 528.988053] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 528.988063] hub 9-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 531.988047] hub 9-0:1.0: hub_suspend > [ 531.988055] usb usb9: bus auto-suspend > [ 531.988058] usb usb9: bus suspend fail, err -2 > [ 531.988061] hub 9-0:1.0: hub_resume > [ 531.988067] xhci_hcd 0000:03:00.0: get port status, actual port 0 > status = 0x2a0 > [ 531.988070] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 531.988076] xhci_hcd 0000:03:00.0: get port status, actual port 1 > status = 0x2a0 > [ 531.988079] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 531.988089] hub 9-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 534.988020] hub 9-0:1.0: hub_suspend > [ 534.988028] usb usb9: bus auto-suspend > [ 534.988031] usb usb9: bus suspend fail, err -2 > [ 534.988034] hub 9-0:1.0: hub_resume > [ 534.988041] xhci_hcd 0000:03:00.0: get port status, actual port 0 > status = 0x2a0 > [ 534.988044] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 534.988050] xhci_hcd 0000:03:00.0: get port status, actual port 1 > status = 0x2a0 > [ 534.988053] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 534.988063] hub 9-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 537.988017] hub 9-0:1.0: hub_suspend > [ 537.988024] usb usb9: bus auto-suspend > [ 537.988027] usb usb9: bus suspend fail, err -2 > [ 537.988030] hub 9-0:1.0: hub_resume > [ 537.988036] xhci_hcd 0000:03:00.0: get port status, actual port 0 > status = 0x2a0 > [ 537.988039] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 537.988045] xhci_hcd 0000:03:00.0: get port status, actual port 1 > status = 0x2a0 > [ 537.988048] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 537.988058] hub 9-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 540.988023] hub 9-0:1.0: hub_suspend > [ 540.988030] usb usb9: bus auto-suspend > [ 540.988034] usb usb9: bus suspend fail, err -2 > [ 540.988037] hub 9-0:1.0: hub_resume > [ 540.988043] xhci_hcd 0000:03:00.0: get port status, actual port 0 > status = 0x2a0 > [ 540.988046] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 540.988052] xhci_hcd 0000:03:00.0: get port status, actual port 1 > status = 0x2a0 > [ 540.988055] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 540.988064] hub 9-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 543.988050] hub 9-0:1.0: hub_suspend > [ 543.988058] usb usb9: bus auto-suspend > [ 543.988061] usb usb9: bus suspend fail, err -2 > [ 543.988064] hub 9-0:1.0: hub_resume > [ 543.988070] xhci_hcd 0000:03:00.0: get port status, actual port 0 > status = 0x2a0 > [ 543.988073] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 543.988079] xhci_hcd 0000:03:00.0: get port status, actual port 1 > status = 0x2a0 > [ 543.988082] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 543.988092] hub 9-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 546.988023] hub 9-0:1.0: hub_suspend > [ 546.988031] usb usb9: bus auto-suspend > [ 546.988034] usb usb9: bus suspend fail, err -2 > [ 546.988037] hub 9-0:1.0: hub_resume > [ 546.988043] xhci_hcd 0000:03:00.0: get port status, actual port 0 > status = 0x2a0 > [ 546.988046] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 546.988052] xhci_hcd 0000:03:00.0: get port status, actual port 1 > status = 0x2a0 > [ 546.988055] xhci_hcd 0000:03:00.0: Get port status returned 0x100 > [ 546.988065] hub 9-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 548.660009] xhci_hcd 0000:03:00.0: Poll event ring: 62165 > [ 548.660014] xhci_hcd 0000:03:00.0: op reg status = 0x0 > [ 548.660018] xhci_hcd 0000:03:00.0: ir_set 0 pending = 0x2 > [ 548.660021] xhci_hcd 0000:03:00.0: No-op commands handled = 0 > [ 548.660023] xhci_hcd 0000:03:00.0: HC error bitmask = 0x0 > [ 548.660026] xhci_hcd 0000:03:00.0: Event ring: > > Please let me know, if I am missing some thing. > > With Regards, > Madhavi M > -- > To unsubscribe from this list: send the line "unsubscribe linux-usb" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at 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