• Arnaldo Carvalho de Melo's avatar
    perf trace beauty ioctl: Beautify USBDEVFS_ commands · 38fc9da6
    Arnaldo Carvalho de Melo authored
    For instance, while debugging the 'galileo' python utility to
    synchronize fitbit trackers:
    
      # perf trace -e ioctl ./run --force
      ioctl(0</dev/pts/8>, TCSETS, 0x7ffe28666420) = 0
      ioctl(0</dev/pts/8>, TCSETS, 0x7ffe28666290) = 0
      ioctl(1</dev/pts/8>, TCSETS, 0x7ffe28666290) = 0
      ioctl(2</dev/pts/8>, TCSETS, 0x7ffe28666290) = 0
      ioctl(3</home/acme/hg/galileo/run>, TCSETS, 0x7ffe286663f0) = -1 ENOTTY (Inappropriate ioctl for device)
      ioctl(1</dev/pts/8>, TCSETS, 0x7ffe286655a0) = 0
      ioctl(1</dev/pts/8>, TCSETS, 0x7ffe28665470) = 0
      ioctl(1</dev/pts/8>, TCSETS, 0x7ffe28665470) = 0
      ioctl(1</dev/pts/8>, TCSETS, 0x7ffe286654a0) = 0
      ioctl(1</dev/pts/8>, TCSETS, 0x7ffe286654a0) = 0
      ioctl(1</dev/pts/8>, TCSETS, 0x7ffe28665400) = 0
      ioctl(1</dev/pts/8>, TIOCSWINSZ, 0x7ffe286654c0) = 0
      ioctl(0</dev/pts/8>, TIOCSWINSZ, 0x7ffe28665560) = 0
      ioctl(0</dev/pts/8>, TIOCSWINSZ, 0x7ffe28665560) = 0
      ioctl(0</dev/pts/8>, TIOCMGET, 0x7ffe28665560) = 0
      ioctl(0</dev/pts/8>, TCSETS, 0x7ffe28665530) = 0
      ioctl(10</dev/bus/usb/001/011>, USBDEVFS_GET_CAPABILITIES, 0x561468dad048) = 0
      ioctl(10</dev/bus/usb/001/011>, USBDEVFS_GETDRIVER, 0x7ffe28665500) = -1 ENODATA (No data available)
      ioctl(10</dev/bus/usb/001/011>, USBDEVFS_GETDRIVER, 0x7ffe28665500) = -1 ENODATA (No data available)
      ioctl(10</dev/bus/usb/001/011>, USBDEVFS_SETCONFIGURATION, 0x7ffe2866513c) = 0
      ioctl(10</dev/bus/usb/001/011>, USBDEVFS_CLAIMINTERFACE, 0x7ffe286647bc) = 0
      ioctl(10</dev/bus/usb/001/011>, USBDEVFS_SUBMITURB, 0x561468dace40) = 0
      ioctl(10</dev/bus/usb/001/011>, USBDEVFS_REAPURBNDELAY, 0x7ffe28664c10) = 0
      ioctl(10</dev/bus/usb/001/011>, USBDEVFS_REAPURBNDELAY, 0x7ffe28664c10) = -1 EAGAIN (Resource temporarily unavailable)
      ioctl(10</dev/bus/usb/001/011>, USBDEVFS_SUBMITURB, 0x561468dace40) = 0
      ioctl(10</dev/bus/usb/001/011>, USBDEVFS_REAPURBNDELAY, 0x7ffe28664dd0) = 0
      ioctl(10</dev/bus/usb/001/011>, USBDEVFS_REAPURBNDELAY, 0x7ffe28664dd0) = -1 EAGAIN (Resource temporarily unavailable)
      <SNIP>
      ioctl(10</dev/bus/usb/001/011>, USBDEVFS_SUBMITURB, 0x561468e72ec0) = 0
      ioctl(10</dev/bus/usb/001/011>, USBDEVFS_REAPURBNDELAY, 0x7ffe28664cc0) = 0
      ioctl(10</dev/bus/usb/001/011>, USBDEVFS_REAPURBNDELAY, 0x7ffe28664cc0) = -1 EAGAIN (Resource temporarily unavailable)
      ioctl(10</dev/bus/usb/001/011>, USBDEVFS_RELEASEINTERFACE, 0x7ffe2866463c) = 0
      ioctl(10</dev/bus/usb/001/011>, USBDEVFS_RELEASEINTERFACE, 0x7ffe2866463c) = 0
      Tracker: 813F4690C3D1: Synchronisation successful
      #
    
    Cc: Adrian Hunter <adrian.hunter@intel.com>
    Cc: Jiri Olsa <jolsa@kernel.org>
    Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
    Cc: Namhyung Kim <namhyung@kernel.org>
    Cc: Wang Nan <wangnan0@huawei.com>
    Link: https://lkml.kernel.org/n/tip-6x2cawak7jno3gpp5pagzj50@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    38fc9da6
ioctl.c 7.41 KB