> Does this work reliably? Is there finally a patch upstream that creates
> fixed numbers for MMC/SD block devices?
I have a *hack* that in my kernel that names the SD-Card to "sdblk0" and
my eMMC to "mmcblk0". That that is completely unacceptable for upstream,
I never even tried it. :-)
Index: linux-4.3/drivers/mmc/card/block.c
===================================================================
--- linux-4.3.orig/drivers/mmc/card/block.c 2015-12-09 17:17:57.264650273 +0100
+++ linux-4.3/drivers/mmc/card/block.c 2015-12-10 08:46:41.874985403 +0100
@@ -2259,14 +2259,16 @@ static struct mmc_blk_data *mmc_blk_allo
* messages to tell when the card is present.
*/
- snprintf(md->disk->disk_name, sizeof(md->disk->disk_name),
- "mmcblk%u%s", md->name_idx, subname ? subname : "");
-
- if (mmc_card_mmc(card))
+ if (mmc_card_mmc(card)) {
+ snprintf(md->disk->disk_name, sizeof(md->disk->disk_name),
+ "mmcblk0%s", subname ? subname : "");
blk_queue_logical_block_size(md->queue.queue,
card->ext_csd.data_sector_size);
- else
+ } else {
+ snprintf(md->disk->disk_name, sizeof(md->disk->disk_name),
+ "sdblk0%s", subname ? subname : "");
blk_queue_logical_block_size(md->queue.queue, 512);
+ }
set_capacity(md->disk, size);
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