I think the solution is to try to rad the CSD if bus test fails. If CSD read fails then lower bus width until it passes. Not had time to work on this yet. On my list of things to do. ________________________________________ From: Tomoya MORINAGA [tomoya-linux@xxxxxxxxxxxxxxx] Sent: Tuesday, March 22, 2011 5:31 PM To: Philip Rakity; 'Nicolas Pitre' Cc: 'Toshiharu Okada'; linux-mmc@xxxxxxxxxxxxxxx Subject: RE: A MMC card transfer issue Hi Philip Still we can see the issue in 2.6.38(The latest kernel). In 2.6.38, is this issue resolved ? With Best Regards, ----------------------------------------- Tomoya MORINAGA OKI SEMICONDUCTOR CO., LTD. > -----Original Message----- > From: Philip Rakity [mailto:prakity@xxxxxxxxxxx] > Sent: Tuesday, February 01, 2011 1:41 AM > To: Nicolas Pitre > Cc: Tomoya MORINAGA; Toshiharu Okada; Manabu Miyata; Takahiro > Shimizu; linux-mmc@xxxxxxxxxxxxxxx > Subject: Re: A MMC card transfer issue > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html