On Mon, 13 Nov 2006, Jang Ik-Joon wrote: > I'm working on making HCD driver for USB 2.O Host controller. > And I want to make EHCI HCD driver without OHCI HCD. > It was OK to build kernel with this configurations. > > Is it possible to attach USB 2.0 device on that kernel? > I hope there is nothing related with OHCI HCD if I use only USB 2.0 device. > But It wasn't detected by kernel when I turned off OHCI support.
Like David said, there's nothing wrong with building a kernel having EHCI support and not OHCI support. What you don't seem to understand is that the EHCI driver handles high-speed devices only, but USB 2.0 devices are allowed to be of any speed. The fact that your device wasn't detected may indicate that it isn't high speed. > I'm using kernel 2.4.20 and ImageMate CF Reader (SDDR-92) for testing > USB 2.0 device. That is a very old kernel, and its EHCI support doesn't work well. You should use a more recent kernel. Alan Stern ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
