Hi Ulf,
On 04.07.2013, at 09:21, Ulf Hansson <ulf.hansson@xxxxxxxxxx> wrote:
> Hi Peter,
>
> You need a mmc_get|put_card surrounding the call for re-intitalize the card.
Sorry, but I can not find no mmc_get_card function in the current kernel mmc git repository.
These could be found in mmc/card/block.c:
static struct mmc_blk_data *mmc_blk_get(struct gendisk *disk);
static struct mmc_blk_data *mmc_blk_put(struct gendisk *disk);
I used the above, like e.g. the mmc_blk_ioctl_cmd() function which my routine is based upon, like so:
>> + if ((!capable(CAP_SYS_RAWIO)) || (bdev != bdev->bd_contains))
>> + return -EPERM;
>> +
>> + md = mmc_blk_get(bdev->bd_disk);
>> + if (!md) {
>> + err = -EINVAL;
>> + goto cmd_err;
>> + }
Furthermore there are the following get|put functions defined:
drivers/mmc/core/core.c:
static inline void mmc_bus_get(struct mmc_host *host);
static inline void mmc_bus_put(struct mmc_host *host);
Or maybe I did not see it. Which ones did you mean and should I use?
>
> Kind regards
> Ulf Hansson
Best regards,
Peter--
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