OK, that makes sense. Even if it does not follow exactly the "undefined" value mentioned in the API definition. Anyways, you both helped me a lot to clarify this. Thx again. Sylvain
-----Original Message----- From: jassi brar [mailto:[email protected]] Sent: Monday, March 15, 2010 2:53 PM To: Centelles, Sylvain Cc: Baruch Siach; [email protected] Subject: Re: [spi-devel-general] Purpose of the "msg->status" On Mon, Mar 15, 2010 at 10:06 PM, Centelles, Sylvain <[email protected]> wrote: > Hi Baruch, > Thx for your fast answer. > I had seen this piece of code. But if this is the only purpose of the > msg->status, then it means it's only used to give return status of the > transfer after the completion. > That mean that the only possible value will be an error code or success. The > EINPROGRESS (used in the pxa2xx_spi.c for example) will never have a chance > to be returned at this place, as any completion will overwrite it. Right? > That what was confusing me... When a xfer is submitted, the status is set by default should the xfer exit via some un-tested path. If the driver state machine has only fixed and tested exit points, you perhaps don't need to set the default status. --------------------------------------------------------------------- Intel Corporation SAS (French simplified joint stock company) Registered headquarters: "Les Montalets"- 2, rue de Paris, 92196 Meudon Cedex, France Registration Number: 302 456 199 R.C.S. NANTERRE Capital: 4,572,000 Euros This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ spi-devel-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/spi-devel-general
