ata: Detect Delkin Devices compact flash

I have a Delkin Devices compact flash card that isn't being recognized using the SATA/PATA drivers. The card is recognized and works with the deprecated ATA drivers. The error I am seeing is: ata1.00: failed to IDENTIFY (device reports invalid type, err_mask=0x0) I tracked it down to ata_id_is_cfa() in include/linux/ata.h. The Delkin card has id[0] set to 0x844a and id[83] set to 0. This isn't what the kernel expects and is probably incorrect. The simplest work-around is to add a check for 0x844a to ata_id_is_cfa(). Signed-off-by: Ben Gardner <[email protected]> Signed-off-by: Jeff Garzik <[email protected]>
gpstrive · Mar 1, 2010 · 4b7d1c0 · 4b7d1c0
1 parent 7e044a1
commit 4b7d1c0
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/include/linux/ata.h b/include/linux/ata.h
@@ -841,7 +841,8 @@ static inline int ata_id_current_chs_valid(const u16 *id)
 
 static inline int ata_id_is_cfa(const u16 *id)
 {
-	if (id[ATA_ID_CONFIG] == 0x848A)	/* Traditional CF */
+	if ((id[ATA_ID_CONFIG] == 0x848A) ||	/* Traditional CF */
+	    (id[ATA_ID_CONFIG] == 0x844A))	/* Delkin Devices CF */
 		return 1;
 	/*
 	 * CF specs don't require specific value in the word 0 anymore and yet