On 02/13/2012 02:03 AM, Chris Ball wrote: > Hi, > > I've created a repository for userspace mmc tools now: > > git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc-utils.git > > At the moment the only commands supported are Johan Rudholm's extcsd > write-protect commands, exposed as: > > ./mmc extcsd read /dev/mmcblkX > ./mmc extcsd write /dev/mmcblkX > > Johan, when I try running these I'm seeing: > > octavius:cjb~/git/mmc-utils % sudo ./mmc extcsd read /dev/mmcblk0 > sdhci-pci 0000:0d:00.0: mmc_blk_ioctl_cmd: cmd error -110 > ioctl: Connection timed out > Could not read EXT_CSD from /dev/mmcblk0 I tested with SD and eMMC. In eMMC case.. /opt/home/root # mmc extcsd read /dev/mmcblk0 Power ro locking: possible Permanent ro locking: possible ro lock status: not locked But In SD card, s3c-sdhci s3c-sdhci.2: mmc_blk_ioctl_cmd: cmd error -110 ioctl: Connection timed out Could not read EXT_CSD from /dev/mmcblk1 What differ? Anyway..It's great about mmc-utils. Best Regards, Jaehoon Chung > > Were you doing something to get the card back into idle state first, > perhaps? > > Giuseppe, it would be excellent if you could add your ext_csd parsing > code to the "extcsd read" command. > > Shashidhar, please could you separate out the kernel-side changes needed > for your test ioctl, and send a patch for kernelspace and one to add an > "mmc runcmd <cmd>" command to this tool? > > Thanks everyone! If anyone else has userspace mmc code to contribute, > feel free to hook it up to this tool and send patches to linux-mmc@. > > - Chris. -- 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
