Hello Pedro, > > Hello everyone, > > We are planning to build an open source tool for UFS, (let's name it > "ufsutils"). The idea is to interact with the ufs driver for debug and test > purposes. For us it would be useful for scenarios like bring up of new > hardware, > debug while adding new features, force specific conditions for testing, check > specific registers from any of the layers (UFS/UniPro/MPhy) at any time... > > We would like to check with you what would be the advisable method to > interact > with the driver from user-space (sysfs, debugFS, ioctls, etc.). I am aware of > the ioctl through sg but we may have use cases without a device. > > Do you think this would be useful for you? Any suggestions? Great minds think alike :) Actually, we already did all that: we introduced a new bsg companion to the ufs driver, To support the very exactly ufs-utils. It was merged in 4.20. You can look it up using "scsi: Add ufs bsg endpoint". We also have a supplementary short series, see https://www.spinics.net/lists/linux-scsi/msg127370.html. We are about to publish ufs-utils in the coming days. Thanks, Avri
