Re: May sane_init fail?

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• Reply: Ingo Wilken: "Re: May sane_init fail?"

After reading dc210.c, I seriously beleave that the tests returning
SANE_STATUS_INVAL from sane_init() should be moved to sane_open().

I beleave a backend should not connect to the device until sane_open()
is called. The DC210 backend opens the serial device, and extract
camera info in sane_init().

Anyway. I'm now writing a patch to sane 1.0.1 with my suggested
change. I suggest three valid responses from sane_init():

SANE_STATUS_GOOD - Success
SANE_STATUS_NO_MEM - Ran out of memory
SANE_STATUS_UNSUPPORTED - Not supported on this machines current
configuration

Would there be need for more return values?

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##>  Petter Reinholdtsen <##    | pere@td.org.uit.no
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 Next message: Petter Reinholdtsen: "Patch: sane_init() may fail"
 Previous message: Luca Del Signore: "Re: HEEEELP!!!!!!!!!!!"
 Maybe in reply to: Petter Reinholdtsen: "May sane_init fail?"

 Next in thread: Ingo Wilken: "Re: May sane_init fail?"
 Reply: Ingo Wilken: "Re: May sane_init fail?"