Re: dummy scsi read or scsi command periodically for external USB Hard Disk

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On Wed, 9 Jul 2014, loody wrote:

> there is one thing pop in my mind.
> if events_poll_msecs is used for media_change, shouldn't we wrap is READ10?

No.  Why should media change polling use READ(10)?  TEST UNIT READY 
does a good job of detecting media changes.

> the difference seems
> 1. change SCSI command
> 2. allocate 512 Byte for 1 sector dummy read
> the periodically trigging flow should be the same.
> 
> if you think above is possible, where we should start from?

Why do you want to make this change?

Alan Stern

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