> This is an interesting strategy. Long ago, I recall there being > devices on a Vax that you couldn't reliably probe this way, because > the bus could hang for several seconds during the probe for various > reasons.
In practice, the probe always happens very early. The first time a device_open is done for the root disk, that probes the root bus and that recurses on the busses for controllers it finds and so forth. Anyway, this kind of question is for the device manager thingie to worry about in the long run. Conceptually, the kernel should not be thinking about peripheral hardware, and the device interfaces in oskit-mach are just a makeshift solution putting in the kernel what only works in the kernel right now, and a Hurdish user-level layer should cover the ugly innards. > It also prevents the auto-detection of interrupt number, doesn't it? > You'd have to turn off all other interrupts, and tickle the device. This is the business of the driver to figure out, in the oskit interfaces. It doesn't really have to turn off all interrupts, it can just install its special probe interrupt handler on all the canditate irqs that are not already taken by other devices that won't share. _______________________________________________ Bug-hurd mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-hurd
