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;
};
> +};
> +#define MMC_IOC_ACMD _IOWR(MMC_BLOCK_MAJOR, 0, struct mmc_ioc_cmd)
> +#endif /* _MMC_IOCTL_H */
Best Regards,
Michał Mirosław
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