On Tue, 12 Apr 2011, Michał Mirosław wrote:
> 2011/4/11 John Calixto <john.calixto@xxxxxxxxxxxxxx>:
> [...]
> > --- /dev/null
> > +++ b/include/linux/mmc/ioctl.h
> > @@ -0,0 +1,32 @@
> > +#ifndef _MMC_IOCTL_H
> > +#define _MMC_IOCTL_H
> > +struct mmc_ioc_cmd {
> > + /* implies direction of data. true = write, false = read */
> > + int write_flag;
> > +
> > + __u32 opcode;
> > + __u32 arg;
> > + __u32 response[4]; /* CMD response */
> > + unsigned int flags;
> > + unsigned int blksz;
> > + unsigned int blocks;
> > +
> > + /*
> > + * Sleep at least postsleep_min_us useconds, and at most
> > + * postsleep_max_us useconds *after* issuing command. Needed for some
> > + * read commands for which cards have no other way of indicating
> > + * they're ready for the next command (i.e. there is no equivalent of a
> > + * "busy" indicator for read operations).
> > + */
> > + unsigned int postsleep_min_us;
> > + unsigned int postsleep_max_us;
> > +
> > + /*
> > + * Override driver-computed timeouts. Note the difference in units!
> > + */
> > + unsigned int data_timeout_ns;
> > + unsigned int cmd_timeout_ms;
> > + __u64 data_ptr; /* DAT buffer */
>
> This will be more natural if you have an anonymous union here:
> union {
> __u64 data_ptr_l;
> void *data_ptr;
> };
>
Ah, but of course! Thanks!
John
