On Thu, 2009-07-16 at 00:43 +0100, Matthew Garrett wrote: > Userspace may wish to make policy decisions based on whether a host > supports device hotplug or not - for example, AHCI link power management > disables hotplug, so may only be desirable on hotplug ports. Add > support for marking hosts as hotpluggable in order to allow userspace to > treat them appropriately. OK, so I don't really understand what the hotplug flag means. You seem to be setting it unconditionally on most sata HBAs. If it just means "bus is hotpluggable", it should be set to 1 at initialisation and the few non hot plug busses (like SPI) get to reset it. However, by definition SATA (like SAS) is a hotplug bus ... why isn't it set for some SATA controllers ... is it because the HBA itself does something wrong when a hotplug event comes in? James -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html