On Sunday 06 March 2005 11:42 am, Gerd v. Egidy wrote: > Just found out that we have a Adaptec-brand controller using a EHCI 1.0 NEC > chip in one of the servers at work: > > kernel: ehci_hcd 0000:00:0e.2: EHCI Host Controller > kernel: ehci_hcd 0000:00:0e.2: irq 5, pci mem 0xdffffe00 > kernel: ehci_hcd 0000:00:0e.2: new USB bus registered, assigned bus number 1 > kernel: ehci_hcd 0000:00:0e.2: USB 2.0 initialized, EHCI 1.00, driver 26 Oct > 2004 > > 00:0e.2 USB Controller: NEC Corporation USB 2.0 (rev 04) (prog-if 20 [EHCI]) > Subsystem: Adaptec: Unknown device 091e > Flags: bus master, medium devsel, latency 64, IRQ 5 > Memory at dffffe00 (32-bit, non-prefetchable) [size=256] > Capabilities: [40] Power Management version 2 > > The website of our dealer says it has a NEC D720100AS1 chip on it. But I > doubt > that since NEC says 720100 is EHCI 0.95 and 720101 is EHCI 1.0 > (http://www.necel.com/usb/en/index.html). Is the output of the linux ehci > driver reliable or can the vendor easily fake that?
That "EHCI 1.00" comes from a chip register that should be hard-wired in the silicon. Among other things, it indicates the chip has certain capabilities that the 0.95 chips don't have. > And another thing: we don't have any problems with backup to a usb-ide on > this > server at work, even with a genesys usb-ide chip... That's good to know. - Dave ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
