Hi Stephen. I had some people ask me about a sdio userspace interface, and ran across the chdio.c file as found in the MSM android kernel trees: https://android.googlesource.com/kernel/msm/+/57b74303d6f033ab04be039379f6661337fb9279 Any reason why this hasn't been submitted upstream? Or has it, and was it rejected? Also, what userspace code uses this? Is there some android-specific code somewhere that does a weird mix of sysfs and char control of the hardware? And what type of SDIO devices are controlled with this? thanks, greg k-h -- 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