Re: [PATCH hurd]: adding /dev/rtc device

[Samuel Thibault]

Zhaoming Luo, le lun. 21 oct. 2024 20:04:23 +0800, a ecrit:
> Then perhaps 'adding /dev/rtc device' should be removed from 'small hack
> entries', or this entry includes implementing a rtc mach device?

For me implementing the device driver was implied :)

> In addition to that, I'm quite confused about 'it doesn't need to
> reside in mach'. Do you mean it is not necessary  to add a rtc mach
> device?

I mean that it probably doesn't have to be in kernelland, and rather be
a userland translator.

> But I think we can only access underlying device through mach device
> interface, device_open() for example, and a rtc mach device is
> required.

Userland can implement device_open etc. Actually we would rather make
/dev/rtc expose the usual ioctls that applications expect to be able to
use, we don't necessarily want to implement the device_* interface.

Samuel