Re: [gentoo-user] printer uses UHCI instead of EHCI. Why?

[Andrew Gaydenko]

Hi!
======= On Sunday 17 February 2008, you wrote: =======
...
> and on page 4:
> "High-speed devices are always routed to and controlled by the EHCI
> host controller (eHC). When running and configured, the eHC is the
> default owner of all the root ports. The eHC and its driver initially
> detect all device attaches. It has additional control bits visible in
> each port register to manage the routing logic. For example: if the
> attached device is not a high-speed device, the eHC driver releases
> ownership of the port (and thus control of the device) to a companion
> host controller. For that port, enumeration starts over from the
> initial attach detect point and the device is enumerated under the
> cHC. Otherwise, the eHC retains ownership of the port and the device
> completes enumeration under the eHC."
>
> Regards
> Jens
>
> [1] http://www.intel.com/technology/usb/download/ehci-r10.pdf

It seems like all is as it must be :-) - see below. The printer declared
to be "Full Speed", i.e. 12Mbit/s, and the speed is got. 

Just curious why printing is too slow (periodical lags between pages).
Probably, some cupsd tuning is needed (CPU eating is ~0%, of course).


Andrew

===================================

Feb 17 17:30:50 anli hub 2-0:1.0: state 7 ports 6 chg 0000 evt 0004
Feb 17 17:30:50 anli ehci_hcd 0000:00:1d.7: GetStatus port 2 status 001803 POWER sig=j CSC CONNECT
Feb 17 17:30:50 anli hub 2-0:1.0: port 2, status 0501, change 0001, 480 Mb/s
Feb 17 17:30:50 anli hub 2-0:1.0: debounce: port 2: total 100ms stable 100ms status 0x501
Feb 17 17:30:50 anli ehci_hcd 0000:00:1d.7: port 2 full speed --> companion
Feb 17 17:30:50 anli ehci_hcd 0000:00:1d.7: GetStatus port 2 status 003801 POWER OWNER sig=j CONNECT
Feb 17 17:30:50 anli hub 2-0:1.0: port 2 not reset yet, waiting 50ms
Feb 17 17:30:50 anli usb usb5: wakeup_rh (auto-start)
Feb 17 17:30:50 anli ehci_hcd 0000:00:1d.7: GetStatus port 2 status 003002 POWER OWNER sig=se0 CSC
Feb 17 17:30:50 anli hub 5-0:1.0: state 7 ports 2 chg 0000 evt 0004
Feb 17 17:30:50 anli uhci_hcd 0000:00:1d.0: port 2 portsc 0093,00
Feb 17 17:30:50 anli hub 5-0:1.0: port 2, status 0101, change 0001, 12 Mb/s
Feb 17 17:30:50 anli hub 5-0:1.0: debounce: port 2: total 100ms stable 100ms status 0x101
Feb 17 17:30:51 anli usb 5-2: new full speed USB device using uhci_hcd and address 3
Feb 17 17:30:51 anli usb 5-2: ep0 maxpacket = 8
Feb 17 17:30:51 anli usb 5-2: default language 0x0409
Feb 17 17:30:51 anli usb 5-2: uevent
Feb 17 17:30:51 anli usb 5-2: usb_probe_device
Feb 17 17:30:51 anli usb 5-2: configuration #1 chosen from 1 choice
Feb 17 17:30:51 anli usb 5-2: adding 5-2:1.0 (config #1, interface 0)
Feb 17 17:30:51 anli usb 5-2:1.0: uevent
Feb 17 17:30:51 anli usblp 5-2:1.0: usb_probe_interface
Feb 17 17:30:51 anli usblp 5-2:1.0: usb_probe_interface - got id
Feb 17 17:30:51 anli drivers/usb/core/file.c: looking for a minor, starting at 0
Feb 17 17:30:51 anli usblp0: USB Bidirectional printer dev 3 if 0 alt 0 proto 2 vid 0x0482 pid 0x0015
Feb 17 17:30:51 anli drivers/usb/core/inode.c: creating file '003'
Feb 17 17:30:51 anli usb 5-2: new device strings: Mfr=1, Product=2, SerialNumber=3
Feb 17 17:30:51 anli usb 5-2: Product: Kyocera FS-1030D
Feb 17 17:30:51 anli usb 5-2: Manufacturer: Kyocera
Feb 17 17:30:51 anli usb 5-2: SerialNumber: **********
Feb 17 17:30:51 anli hub 2-0:1.0: state 7 ports 6 chg 0000 evt 0004
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