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Arnaldo Carvalho de Melo
38fc9da69f
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 <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Luis Cláudio Gonçalves <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Wang Nan <[email protected]> Link: https://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>