[linux-usb-devel] EHCI and OHCI port numbering?

2007-07-30 Thread Alex Chiang
Hello, How are ports numbered/ordered in the case of an EHCI controller with a companion controller? Example: N_PORTS = 6 AND N_CC = 2 N_PCC = 3 ORPORTROUTE[] = 1,1,1,2,2,2 Would give a routing configuration of: EHCI port 1 = OHCI1 port 1 (not 2 or 3) EHCI

[linux-usb-devel] cdrom buffer i/o error on heavily loaded system

2007-06-28 Thread Alex Chiang
Hello, I have a Teac DV-28E-N cdrom, and I've been seeing some buffer I/O errors on a heavily loaded system (uptime indicates system load of 390 or so). Turning on USB debugging for usbcore and mass storage indicates that something is timing out (hanging?), which makes the SCSI mid-layer issue