Hi, On 10/02/2020 20:27, Aaro Koskinen wrote: >> >> So how does this currently happen, the unmounting? Does the mmc1 card >> just disappear from /dev/ without any safe unmount? I don't understand >> how the current setup can work from a userspace point of view. >> >> Userspace could react on kernel events that tell it the cover is open, >> but I assume the kernel doesn't just decide to nuke the node from /dev/, >> so in that case the current DTS setup still doesn't make sense, right? >> >> What am I missing? Could you describe how this would work in a 'real >> life' scenario? > > I don't think it can work with the current mainline kernel. > > I recall the original Nokia kernel used the GPIO for "cover switch" > instead of card detect, and it was visible in sysfs, and this allowed > userspace to react on cover removal.. In the mainline kernel we have > this for older Nokia devices (770, N8x0), but not for N900. Still it > wouldn't help much for "safe unmount" as the unmount can take quite a > while, and user may remove the card too early. Shall I send in a patch removing this check from the device tree, then? Cheers, Merlijn
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