The HCSPARAMS N_CC = 0. We do not have a companion controller. Thanks, Julie. > -----Original Message----- > From: Pandita, Vikram [mailto:vikram.pandita@xxxxxx] > Sent: Monday, January 19, 2009 10:54 AM > To: Julie Zhu; linux-usb > Subject: RE: HCD_USB2 flag, ehci host controller, no FS/LS support > > >Sent: Monday, January 19, 2009 11:11 AM > >To: linux-usb > >Subject: HCD_USB2 flag, ehci host controller, no FS/LS support > > > >Hello, > > > >We are working with a host controller on a PowerPC embedded board. It is > >an EHCI host controller. However, there are no UHCI/OHCI host > >controllers on the board. Therefore, if a FS/LS device plugs onto the > > What does the HCSPARAMS capability register read on your hardware? > What is the value of N_CC? If this is non-zero, you know where the problem > lies. > > > > >board, Linux will try to hand the port to a companion controller, which > >is not there, and this causes the EHCI host controller die (or maybe the > >port is marked dead?), and unplug the device causes no "disconnect" > >report. The host controller also does not respond to further plug in of > >a HS device. > > This email and any attachments are intended for the sole use of the named recipient(s) and contain(s) confidential information that may be proprietary, privileged or copyrighted under applicable law. If you are not the intended recipient, do not read, copy, or forward this email message or any attachments. Delete this email message and any attachments immediately. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
