Fwd: [rtc-linux] RTC_SET_TIME: Inappropriate ioctl for device
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From: Wan ZongShun on 8 Jun 2010 10:50 CC to LKML to do further discussion. ---------- Forwarded message ---------- From: Wan ZongShun <mcuos.com(a)gmail.com> Date: 2010/6/8 Subject: Re: [rtc-linux] RTC_SET_TIME: Inappropriate ioctl for device To: rtc-linux(a)googlegroups.com, jeffjway(a)gmail.com Hi Jeff, 2010/6/8 JJeff <jeffjway(a)gmail.com>: > Whenever I try to run 'hwclock', I get the error: > "RTC_RD_TIME: Inappropriate ioctl for device:" > or > " RTC_SET_TIME: Inappropriate ioctl for device" > if I run it with the -w option > Both of errors indicate your user layer or kernel driver is using a wrong IOCTL command, maybe your RTC_RD_TIME of user layer doesnot match the RTC_RD_TIME of kernel layer. so driver return a '--ENOTTY' error no. The better thing is you can write a rtc test application to identify your driver works well. Maybe you can change other version hwclock for testing. > Is the hwclock too old a version or something? The option --version > is not recognised. > > > I'm trying to use the hwclock command to sync the time each bootup, so > any other ideas as to how to do it would be good too. > > Thanks > > Jeff > > -- > You received this message because you are subscribed to "rtc-linux". > Membership options at http://groups.google.com/group/rtc-linux . > Please read http://groups.google.com/group/rtc-linux/web/checklist > before submitting a driver. -- *linux-arm-kernel mailing list mail addr:linux-arm-kernel(a)lists.infradead.org you can subscribe by: http://lists.infradead.org/mailman/listinfo/linux-arm-kernel * linux-arm-NUC900 mailing list mail addr:NUC900(a)googlegroups.com main web: https://groups.google.com/group/NUC900 you can subscribe it by sending me mail: mcuos.com(a)gmail.com -- *linux-arm-kernel mailing list mail addr:linux-arm-kernel(a)lists.infradead.org you can subscribe by: http://lists.infradead.org/mailman/listinfo/linux-arm-kernel * linux-arm-NUC900 mailing list mail addr:NUC900(a)googlegroups.com main web: https://groups.google.com/group/NUC900 you can subscribe it by sending me mail: mcuos.com(a)gmail.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |