Hi,

i was testing acpi in my computer. i found problem with suspending usb
device.

i test:

echo 1 > /proc/acpi/sleep

and i get this output from kernel.log:

Oct 24 16:02:33 prog3 kernel: PM: Preparing system for suspend
Oct 24 16:02:33 prog3 kernel: Stopping tasks: 
=====================================================================================|
Oct 24 16:02:33 prog3 kernel: uhci_hcd 0000:00:07.3: Unlink after no-IRQ?  Different 
ACPI or APIC settings may help.
Oct 24 16:02:33 prog3 kernel: uhci_hcd 0000:00:07.2: Unlink after no-IRQ?  Different 
ACPI or APIC settings may help.
Oct 24 16:02:33 prog3 kernel: uhci_hcd 0000:00:07.3: suspend D0 --> D1
Oct 24 16:02:33 prog3 kernel: uhci_hcd 0000:00:07.3: suspend_hc
Oct 24 16:02:33 prog3 kernel: uhci_hcd 0000:00:07.3: PCI suspend fail, -5
Oct 24 16:02:33 prog3 kernel: uhci_hcd 0000:00:07.3: resume from state D0
Oct 24 16:02:33 prog3 kernel: Could not suspend device 0000:00:07.3: error -5
Oct 24 16:02:33 prog3 kernel: ACPI: PCI interrupt 0000:00:07.5[C] -> GSI 11 (level, 
low) -> IRQ 11
Oct 24 16:02:33 prog3 kernel: ACPI: PCI interrupt 0000:00:09.0[A] -> GSI 11 (level, 
low) -> IRQ 11
Oct 24 16:02:33 prog3 kernel: ACPI: PCI interrupt 0000:00:0b.0[A] -> GSI 10 (level, 
low) -> IRQ 10
Oct 24 16:02:33 prog3 kernel: ACPI: PCI interrupt 0000:00:0c.0[A] -> GSI 11 (level, 
low) -> IRQ 11
Oct 24 16:02:33 prog3 kernel: ACPI: PCI interrupt 0000:01:00.0[A] -> GSI 11 (level, 
low) -> IRQ 11
Oct 24 16:02:33 prog3 kernel: spurious 8259A interrupt: IRQ7.
Oct 24 16:02:33 prog3 kernel: uhci_hcd 0000:00:07.3: wakeup_hc
Oct 24 16:02:33 prog3 kernel: hub 1-0:1.0: reactivate --> -22
Oct 24 16:02:33 prog3 kernel: hub 2-0:1.0: reactivate --> -22
Oct 24 16:02:33 prog3 kernel: Restarting tasks... done
Oct 24 16:02:34 prog3 kernel: uhci_hcd 0000:00:07.3: suspend_hc


lspci -vvv about device say:


0000:00:07.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller 
(rev 0e) (prog-if 00 [UHCI])
        Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- 
SERR- FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- 
<MAbort- >SERR- <PERR-
        Latency: 32, Cache Line Size: 0x08 (32 bytes)
        Interrupt: pin D routed to IRQ 10
        Region 4: I/O ports at c400 [size=32]
        Capabilities: [80] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA 
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

0000:00:07.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller 
(rev 0e) (prog-if 00 [UHCI])
        Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- 
SERR- FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- 
<MAbort- >SERR- <PERR-
        Latency: 32, Cache Line Size: 0x08 (32 bytes)
        Interrupt: pin D routed to IRQ 10
        Region 4: I/O ports at c800 [size=32]
        Capabilities: [80] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA 
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-


My system is: Linux, Intel Celeron processor. distro: debian testing.
a have no usb devices plugged.
module for usb: uhci-hcd
kernel: 2.6.9

for testing or another information contact me.

 thanks for help
   bye 
     Pavel Kysilka
     programmer http://www.bsys.cz/


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