On Tue, Oct 22, 2013 at 10:14:00AM -0700, Guenter Roeck wrote: > > > > You can already do this today for PCI with the UIO framework, right? > > Why duplicate that functionality here with another userapce API that we > > will then have to maintain for the next 40+ years? > > > Same for i2c, where the same functionality is supported through i2c-tools and > the i2c-dev driver. Adding i2c-tools to initramfs and/or to the root file > system > should not be that much of an issue, much less than having to maintain two > APIs > for the same purpose. > > Guenter
For PCI and memory mapped I/O devices, we have the runtime pm issue that has to be addressed from kernel space. For I2C slave devices, there is no such a issue so yes i2c-tools and i2c-dev drivers are fine. But the two APIs are required by PCI and memory mapped I/O devices anyway. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
