On Thu, Nov 11, 2004 at 03:16:27PM -0500, David Zeuthen wrote: > > > later powers back down. During the power up, poll TOC sequence it locks the > > > bus so your IDE bus spends 1.5 of every 2 seconds jammed by the drive. > > > > it sounds like HAL should measure how long such a poll takes (shouldn't > > be too hard) and then add like 10 times that time to the 2 seconds > > interval. On fast hw you get almost a 2 second interval but on really > > slow cdroms you still can get decent performance. > > Another more straightforward option is of course to poll more than once > a second so the drive never goes into power saving mode and thus never > jams the bus :-). No, seriously, it would best not to poll as well, but > we do need the media change notifications. yeah well... need to get hardware that gives those notifications.. which is REALLY rare.