from my original post: > Is there a way to enforce a delay in probing USB or SCSI in NetBSD, to > possibly avert timeouts/disconnects?
> In FreeBSD, there is a tunable loader parameter. > In /boot/defaults/loader.conf, there is a line showing the default (FreeBSD) > #kern.cam.scsi_delay="2000" # Delay (in ms) before probing SCSI > Not many computer users actually have SCSI these days, but USB uses SCSI > subsystem. > This 2000 milliseconds can be set higher, like 13000, and has helped me in > FreeBSD. > How can I achieve this effect in NetBSD? Manuel Bouyer responded: > A better question would be: why is 2s not enough ? How is that for an evasive answer? Or is this a devious way of saying I should stick with FreeBSD and Linux? There tends to be a little delay in recognizing a USB device, and keeping it up. I notice that setting kern.cam.scsi.delay="13000" or whatever it is now seems to prevent device timeouts on the Hiro H50191 wi-fi adapter in FreeBSD. This device is not supported in NetBSD but works in FreeBSD 10.0-prerelease and 11-HEAD as device rsu; also seems to be supported in OpenBSD 5.4. Tom
