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Message-ID: <20130725003029.GD26943@blackmetal.musicnaut.iki.fi> Date: Thu, 25 Jul 2013 03:30:30 +0300 From: Aaro Koskinen <aaro.koskinen@....fi> To: Daniel Mack <zonque@...il.com> Cc: Felipe Balbi <balbi@...com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, linux-usb@...r.kernel.org, linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: v3.11-rc1 USB regressions Hi, On Wed, Jul 24, 2013 at 09:04:28PM +0200, Daniel Mack wrote: > On 24.07.2013 20:51, Aaro Koskinen wrote: > >> When I revert fe4cb0912f8e737f8e4b8b38b9e692f8062f5423 and > >> 8b125df5b24cfb0ec7fa1971e343cc0badc1827d, it works like before (3.10): > > > > I'm now running -rc2 with above fixes and reverts (the only way to get > > USB working). I'm seeing an additional issue, the following crash happens > > always on N900 when doing "poweroff": > > Yes, with the mentioned patches reverted, musb_to_hcd() will return a > faulty pointer. You can't easily revert them unfortunately. > > Your platform needs a real fix, I just have trouble understanding why a > removed usb_add_hcd() would make the gadget code fail. > > Sorry for the trouble, but I don't currently have a board with musb in > gadget mode to reproduce this issue. If you have any ideas what to look for, I can maybe try to debug this issue. Below are some logs with additional DEBUGs enabled. Broken: [ 4.111480] udc musb-hdrc.0.auto: registering UDC driver [g_ether] [ 4.136962] using random self ethernet address [ 4.144134] using random host ethernet address [ 4.151000] g_ether gadget: adding config #1 'CDC Ethernet (ECM)'/bf03f2c0 [ 4.160552] g_ether gadget: adding 'cdc_ethernet'/cef92e40 to config 'CDC Ethernet (ECM)'/bf03f2c0 [ 4.186828] usb0: HOST MAC f6:4a:86:02:5d:ec [ 4.193939] usb0: MAC 26:e9:7c:49:4a:2e [ 4.200256] g_ether gadget: CDC Ethernet: dual speed IN/ep1in OUT/ep1out NOTIFY/ep2in [ 4.210906] g_ether gadget: cfg 1/bf03f2c0 speeds: high full [ 4.219207] g_ether gadget: interface 0 = cdc_ethernet/cef92e40 [ 4.227874] g_ether gadget: interface 1 = cdc_ethernet/cef92e40 [ 4.236480] g_ether gadget: Ethernet Gadget, version: Memorial Day 2008 [ 4.245635] g_ether gadget: g_ether ready [ 4.261627] twl4030_usb twl4030_usb: twl4030_phy_resume [ 4.281433] usb0: eth_open [ 4.560974] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb000d tx0001 rx0000 [ 4.570983] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0xd [ 4.579681] musb-hdrc musb-hdrc.0.auto: SUSPEND (b_idle) devctl 99 [ 4.588378] musb-hdrc musb-hdrc.0.auto: BUS RESET as b_peripheral [ 4.596984] musb-hdrc musb-hdrc.0.auto: RX ep0 fifo fa0ab020 count 8 buf c0c55df0 [ 4.607055] musb-hdrc musb-hdrc.0.auto: TX ep0 fifo fa0ab020 count 18 buf cef1a000 [ 4.617248] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 4.627044] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 4.728790] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb000c tx0001 rx0000 [ 4.738616] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0xc [ 4.747222] musb-hdrc musb-hdrc.0.auto: BUS RESET as b_peripheral [ 4.755645] musb-hdrc musb-hdrc.0.auto: RX ep0 fifo fa0ab020 count 8 buf c0c55df0 [ 4.765533] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 4.775207] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 4.784637] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 4.794281] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 4.802703] musb-hdrc musb-hdrc.0.auto: RX ep0 fifo fa0ab020 count 8 buf c0c55df0 [ 4.812500] musb-hdrc musb-hdrc.0.auto: TX ep0 fifo fa0ab020 count 18 buf cef1a000 [ 4.822509] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 4.832153] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 4.840576] musb-hdrc musb-hdrc.0.auto: RX ep0 fifo fa0ab020 count 8 buf c0c55dd0 [ 4.850372] musb-hdrc musb-hdrc.0.auto: TX ep0 fifo fa0ab020 count 9 buf cef1a000 [ 4.860198] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 4.869781] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 4.878112] musb-hdrc musb-hdrc.0.auto: RX ep0 fifo fa0ab020 count 8 buf c0c55ce8 [ 4.887847] musb-hdrc musb-hdrc.0.auto: TX ep0 fifo fa0ab020 count 64 buf cef1a000 [ 4.897674] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 4.907257] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 4.915588] musb-hdrc musb-hdrc.0.auto: TX ep0 fifo fa0ab020 count 24 buf cef1a040 [ 4.925506] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 4.935089] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 4.943450] musb-hdrc musb-hdrc.0.auto: RX ep0 fifo fa0ab020 count 8 buf c0c55ce8 [ 4.953247] musb-hdrc musb-hdrc.0.auto: TX ep0 fifo fa0ab020 count 4 buf cef1a000 [ 4.963012] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 4.972595] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 4.980926] musb-hdrc musb-hdrc.0.auto: RX ep0 fifo fa0ab020 count 8 buf c0c55ce8 [ 4.990692] musb-hdrc musb-hdrc.0.auto: TX ep0 fifo fa0ab020 count 32 buf cef1a000 [ 5.000549] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 5.010101] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 5.018432] musb-hdrc musb-hdrc.0.auto: RX ep0 fifo fa0ab020 count 8 buf c0c55ce8 [ 5.028167] musb-hdrc musb-hdrc.0.auto: TX ep0 fifo fa0ab020 count 64 buf cef1a000 [ 5.038024] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 5.047576] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 5.055908] musb-hdrc musb-hdrc.0.auto: TX ep0 fifo fa0ab020 count 52 buf cef1a040 [ 5.065765] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 5.075378] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 5.083740] musb-hdrc musb-hdrc.0.auto: RX ep0 fifo fa0ab020 count 8 buf c0c55ce8 [ 5.093536] g_ether gadget: high-speed config #1: CDC Ethernet (ECM) [ 5.102172] g_ether gadget: init ecm [ 5.107818] g_ether gadget: notify connect false [ 5.114562] musb-hdrc musb-hdrc.0.auto: TX ep2 fifo fa0ab028 count 8 buf c08d53c0 Working (with the reverts): [ 4.106201] udc musb-hdrc.0.auto: registering UDC driver [g_ether] [ 4.130065] using random self ethernet address [ 4.137237] using random host ethernet address [ 4.144134] g_ether gadget: adding config #1 'CDC Ethernet (ECM)'/bf03f2c0 [ 4.153656] g_ether gadget: adding 'cdc_ethernet'/cef3a9c0 to config 'CDC Ethernet (ECM)'/bf03f2c0 [ 4.179870] usb0: HOST MAC 72:08:7d:47:a9:e4 [ 4.186981] usb0: MAC 4a:07:75:00:12:7e [ 4.193298] g_ether gadget: CDC Ethernet: dual speed IN/ep1in OUT/ep1out NOTIFY/ep2in [ 4.203918] g_ether gadget: cfg 1/bf03f2c0 speeds: high full [ 4.212219] g_ether gadget: interface 0 = cdc_ethernet/cef3a9c0 [ 4.220916] g_ether gadget: interface 1 = cdc_ethernet/cef3a9c0 [ 4.229522] g_ether gadget: Ethernet Gadget, version: Memorial Day 2008 [ 4.238616] g_ether gadget: g_ether ready [ 4.254211] twl4030_usb twl4030_usb: twl4030_phy_resume [ 4.262084] musb-hdrc musb-hdrc.0.auto: MUSB HDRC host driver [ 4.270263] musb-hdrc musb-hdrc.0.auto: new USB bus registered, assigned bus number 1 [ 4.280761] musb-hdrc musb-hdrc.0.auto: supports USB remote wakeup [ 4.289581] usb usb1: default language 0x0409 [ 4.296356] usb usb1: udev 1, busnum 1, minor = 0 [ 4.303527] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 [ 4.312927] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 4.322753] usb usb1: Product: MUSB HDRC host driver [ 4.330230] usb usb1: Manufacturer: Linux 3.11.0-rc2-n9xx-00003-gd4a7806-dirty musb-hcd [ 4.340942] usb usb1: SerialNumber: musb-hdrc.0.auto [ 4.349884] usb usb1: usb_probe_device [ 4.356170] usb usb1: configuration #1 chosen from 1 choice [ 4.364379] usb usb1: adding 1-0:1.0 (config #1, interface 0) [ 4.383575] hub 1-0:1.0: usb_probe_interface [ 4.390502] hub 1-0:1.0: usb_probe_interface - got id [ 4.397918] hub 1-0:1.0: USB hub found [ 4.403961] hub 1-0:1.0: 1 port detected [ 4.410095] hub 1-0:1.0: standalone hub [ 4.416046] hub 1-0:1.0: individual port power switching [ 4.423553] hub 1-0:1.0: no over-current protection [ 4.430664] hub 1-0:1.0: Single TT [ 4.436126] hub 1-0:1.0: TT requires at most 8 FS bit times (666 ns) [ 4.444793] hub 1-0:1.0: power on to power good time: 10ms [ 4.452545] hub 1-0:1.0: local power source is good [ 4.459747] hub 1-0:1.0: enabling power on all ports [ 4.479187] usb0: eth_open [ 4.522949] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0001 tx0000 rx0000 [ 4.532714] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x1 [ 4.541137] musb-hdrc musb-hdrc.0.auto: SUSPEND (b_idle) devctl 99 [ 4.567230] hub 1-0:1.0: state 7 ports 1 chg 0000 evt 0000 [ 4.574951] hub 1-0:1.0: hub_suspend [ 4.580596] usb usb1: bus auto-suspend, wakeup 1 [ 4.647338] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0004 tx0000 rx0000 [ 4.656921] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x4 [ 4.665252] musb-hdrc musb-hdrc.0.auto: BUS RESET as b_peripheral [ 4.758178] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 4.767730] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 4.776123] musb-hdrc musb-hdrc.0.auto: RX ep0 fifo fa0ab020 count 8 buf c0c55df0 [ 4.785949] musb-hdrc musb-hdrc.0.auto: TX ep0 fifo fa0ab020 count 18 buf cefba000 [ 4.795928] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 4.805572] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 4.814086] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb000c tx0000 rx0000 [ 4.823760] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0xc [ 4.832244] musb-hdrc musb-hdrc.0.auto: BUS RESET as b_peripheral [ 4.905944] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 4.915618] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 4.924102] musb-hdrc musb-hdrc.0.auto: RX ep0 fifo fa0ab020 count 8 buf c0c55df0 [ 4.934082] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 4.943786] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 4.953857] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 4.963531] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 4.971984] musb-hdrc musb-hdrc.0.auto: RX ep0 fifo fa0ab020 count 8 buf c0c55df0 [ 4.981842] musb-hdrc musb-hdrc.0.auto: TX ep0 fifo fa0ab020 count 18 buf cefba000 [ 4.991790] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 5.001434] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 5.009857] musb-hdrc musb-hdrc.0.auto: RX ep0 fifo fa0ab020 count 8 buf c0c55df0 [ 5.019653] musb-hdrc musb-hdrc.0.auto: TX ep0 fifo fa0ab020 count 9 buf cefba000 [ 5.029449] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 5.039031] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 5.047424] musb-hdrc musb-hdrc.0.auto: RX ep0 fifo fa0ab020 count 8 buf c0c55df0 [ 5.057189] musb-hdrc musb-hdrc.0.auto: TX ep0 fifo fa0ab020 count 64 buf cefba000 [ 5.067047] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 5.076629] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 5.085021] musb-hdrc musb-hdrc.0.auto: TX ep0 fifo fa0ab020 count 24 buf cefba040 [ 5.094940] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 5.104522] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 5.112915] musb-hdrc musb-hdrc.0.auto: RX ep0 fifo fa0ab020 count 8 buf c0c55d08 [ 5.122741] musb-hdrc musb-hdrc.0.auto: TX ep0 fifo fa0ab020 count 4 buf cefba000 [ 5.132537] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 5.142120] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 5.150512] musb-hdrc musb-hdrc.0.auto: RX ep0 fifo fa0ab020 count 8 buf c0c55d08 [ 5.160278] musb-hdrc musb-hdrc.0.auto: TX ep0 fifo fa0ab020 count 32 buf cefba000 [ 5.170135] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 5.179687] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 5.188018] musb-hdrc musb-hdrc.0.auto: RX ep0 fifo fa0ab020 count 8 buf c0c55d08 [ 5.197784] musb-hdrc musb-hdrc.0.auto: TX ep0 fifo fa0ab020 count 64 buf cefba000 [ 5.207611] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 5.217163] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 5.225524] musb-hdrc musb-hdrc.0.auto: TX ep0 fifo fa0ab020 count 52 buf cefba040 [ 5.235382] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 5.244964] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 5.253356] musb-hdrc musb-hdrc.0.auto: RX ep0 fifo fa0ab020 count 8 buf c0c55d08 [ 5.263153] g_ether gadget: high-speed config #1: CDC Ethernet (ECM) [ 5.271759] g_ether gadget: init ecm [ 5.277435] g_ether gadget: notify connect false [ 5.284179] musb-hdrc musb-hdrc.0.auto: TX ep2 fifo fa0ab028 count 8 buf c08f33c0 [ 5.294067] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 5.303771] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 5.312255] musb-hdrc musb-hdrc.0.auto: RX ep0 fifo fa0ab020 count 8 buf c0c55d08 [ 5.322113] musb-hdrc musb-hdrc.0.auto: TX ep0 fifo fa0ab020 count 64 buf cefba000 [ 5.332092] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 5.341796] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 5.350280] musb-hdrc musb-hdrc.0.auto: TX ep0 fifo fa0ab020 count 2 buf cefba040 [ 5.360168] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 5.369873] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 5.378387] musb-hdrc musb-hdrc.0.auto: RX ep0 fifo fa0ab020 count 8 buf c0c55d08 [ 5.388305] g_ether gadget: activate ecm [ 5.394439] usb0: qlen 10 [ 5.399139] g_ether gadget: ecm_open [ 5.404907] usb0: eth_start [ 5.409881] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 5.419677] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 5.428222] musb-hdrc musb-hdrc.0.auto: RX ep0 fifo fa0ab020 count 8 buf c0c55d08 [ 5.438171] musb-hdrc musb-hdrc.0.auto: TX ep0 fifo fa0ab020 count 26 buf cefba000 [ 5.448211] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 5.457946] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 5.466430] musb-hdrc musb-hdrc.0.auto: RX ep0 fifo fa0ab020 count 8 buf c0c55d08 [ 5.476318] musb-hdrc musb-hdrc.0.auto: TX ep0 fifo fa0ab020 count 36 buf cefba000 [ 5.486297] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0001 rx0000 [ 5.495941] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 5.548889] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0004 rx0000 [ 5.558563] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 5.566986] g_ether gadget: notify connect true [ 5.573730] musb-hdrc musb-hdrc.0.auto: TX ep2 fifo fa0ab028 count 8 buf c08f33c0 [ 5.612884] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0004 rx0000 [ 5.622619] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 5.631134] g_ether gadget: notify speed 425984000 [ 5.638214] musb-hdrc musb-hdrc.0.auto: TX ep2 fifo fa0ab028 count 16 buf c08f33c0 [ 5.676879] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0004 rx0000 [ 5.686706] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 5.970092] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0000 rx0002 [ 5.979888] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 5.988494] musb-hdrc musb-hdrc.0.auto: RX ep1 fifo fa0ab024 count 78 buf ceecf002 [ 6.970275] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0000 rx0002 [ 6.980102] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 6.988677] musb-hdrc musb-hdrc.0.auto: RX ep1 fifo fa0ab024 count 70 buf ceecf802 [ 10.974395] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0000 rx0002 [ 10.984252] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 10.992858] musb-hdrc musb-hdrc.0.auto: RX ep1 fifo fa0ab024 count 70 buf cefdc002 [ 14.606536] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0000 rx0002 [ 14.616424] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 14.625091] musb-hdrc musb-hdrc.0.auto: RX ep1 fifo fa0ab024 count 90 buf cefdc802 [ 14.982360] musb-hdrc musb-hdrc.0.auto: ** IRQ peripheral usb0008 tx0000 rx0002 [ 14.992248] musb-hdrc musb-hdrc.0.auto: <== DevCtl=99, int_usb=0x8 [ 15.000915] musb-hdrc musb-hdrc.0.auto: RX ep1 fifo fa0ab024 count 70 buf cefdd002 A. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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