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Additional clarification.

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This commit is contained in:
Warner Losh 2001-07-27 07:32:59 +00:00
parent c1c1a23f53
commit 53286eb3f2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=80439
1 changed files with 8 additions and 1 deletions
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9
sys/pccard/cardinfo.h
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@ -78,13 +78,20 @@
*
* Note, the above diagram is for the state. On suspend, the laststate
* gets set to suspend to tell pccardd what happened. Also the nil state
* means that when the no state change has happened.
* means that when the no state change has happened. Note: if you eject
* while suspended in the inactive state, you will return to the
* empty state if you do not insert a new card and to the inactive state
* if you do insert a new card.
*
* Some might argue that inactive should be sticky forever and
* eject/insert shouldn't take it out of that state. They might be
* right. On the other hand, some would argue that eject resets all
* state. They might be right. They both can't be right. The above
* represents a reasonable compromise between the two.
*
* Some bridges allow one to query to see if the card was changed while
* we were suspended. Others do not. We make no use of this functionality
* at this time.
*/
enum cardstate { noslot, empty, suspend, filled, inactive };