> On Tue, Dec 07, 2021 at 08:28:42AM +0000, Avri Altman wrote: > > > > > This patch adds support to set the RTC information in the eMMC > > > device. This is based on the JEDEC specification. > > > > > > There is no way however, to read the RTC time from the device. Hence > > > we rely on the response of the CMD49 to confirm the completion of > > > the operation. > > > > > > This patch has been tested successfully with the ioctl interface. > > > This patch has also been tested suceessfully with all the three > > > RTC_INFO_TYPEs. > > If this is triggered from user-space via ioctl anyway, Why do we need > > this command to be implemented in the kernel? > > Why not just add this to mmc-utils? > > > > Thanks, > > Avri > As per the spec, B51: Section 6.6.35: > Providing RTC info may be useful for internal maintainance operations. > And the host should send it on the following events: > - power-up > - wake-up > - Periodically > Hence IMO, the Kernel would be the right place of peforming this operation. But your patch doesn't do that, is it? Thanks, Avri
