--- On Thu, 1/14/10, tortoise <[email protected]> wrote: > From: tortoise <[email protected]> > Subject: Re: ImageWriter... and fighting with Chooser > To: "Vintage Macs" <[email protected]> > Date: Thursday, January 14, 2010, 7:25 PM > > > On Jan 12, 1:51 am, [email protected] > wrote: > > ADB DEFINITIVLY is hot pluggable - but the cdev > settings have to be adjusted. > > SCSI is not. > > > To hotplug SCSI you need scsi probe to access / mount a > hard drive. I > did it last week. > > When I have hotplug ADB (whoops the kb / mouse wasn't > plugged in). I > get a "slow mouse" but things do work. > Tablets don't get loaded as tablet though they may work in > mouse mode. > > Supposed to be very careful to insert the plug straight on > so all pins hit at the same instant.
Most hot-pluggable connections have the power connections longer than the data connections so the device gets powered up before making the data linkup. USB, FireWire, Compact Flash, PCMCIA/CardBus, SD and most other memory cards are that way. "Legacy" connectors like ADB, PS/2, serial, parallel, SCSI etc have all connectors the same length. I suppose in theory that an ADB plug with the power and ground pins slightly longer than the other two pins might be hot-pluggable, but there'd still be the issue of the software side not being written to handle devices suddenly appearing and vanishing.
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