I am having problems with the 'mmc' userspace command in mmc-utils. This call: > /usr/bin/mmc write_reliability set -y 0 /dev/mmcblk1 results in: > setting OTP PARTITION_SETTING_COMPLETED! > Setting OTP PARTITION_SETTING_COMPLETED failed on /dev/mmcblk1 Which is not too surprising, since I only want to set the write reliability bit and did not touch any (mmc-)partition information, so that it probably still is invalid. If I then type: > /usr/bin/mmc extcsd read /dev/mmcblk1 that reliable write bit is shown as set: > Write reliability setting register [WR_REL_SET]: 0x01 After consulting the JEDEC standards I failed to find the necessity to set the "Partition setting complete" bit to actually enable the "reliable write" function. If there *is* no connection, then commit 196d0d29588867bed50cd28b8f03cbbb5e0e6608 (2013-09-19 17:14:29) must not try to set that bit and also must refrain from setting the reliable write bit itself when in dry run mode. I will have to defer to the experts in this matter whether this is actually a bug in the mmc utility or just a less than clear definition in the standard or something else entirely. -- i.A. Harald Brinkmann BST eltromat International GmbH Werk Leopoldshöhe Herforder Straße 249-251 D-33818 Leopoldshöhe T: +49 (5208) 987-513 E: harald.brinkmann@xxxxxxxxxxxxxxxxxxxxx W: http://www.bst-eltromat.com _______________________________________________________ Amtsgericht Bielefeld, HRB Nr. 30830 Geschäftsführer Kristian Jünke, Dr. Johann-Carsten Kipp, Dr. Gunter Tautorus Sitz der Gesellschaft: Bielefeld Vertrauliche E-Mail von BST eltromat International GmbH ��.n��������+%������w��{.n�����{��i��)�� jg��� �����ݢj����G���� ���j:+v���w�m������w�������h�����٥
