Hi Randy, On Tuesday, September 29, 2020 6:13 PM, Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote: > On 9/28/20 9:45 AM, nmeeramohide@xxxxxxxxxx wrote: > > + if (_IOC_TYPE(cmd) != MPIOC_MAGIC) > Hi, > > MPIOC_MAGIC is defined in patch 01/22. > It should also be added to Documentation/userspace-api/ioctl/ioctl-number.rst. > Sure, thanks! I've made a note of this and will address it in v2. Thanks, Nabeel