hub 2-0:1.0: port 2 disabled by hub (EMI?), re-enabling...

hub 2-0:1.0: port 2 disabled by hub (EMI?), re-enabling...

[Michael Trimarchi]

Hi all,

I'm working on a overo board + a palo43 daughter board. I connect a camera to hit with the following result:

hub 2-0:1.0: port 2 disabled by hub (EMI?), re-enabling...                      
usb 2-2: USB disconnect, address 16                                             
gspca: disconnect complete 
usb 2-2: new high speed USB device using ehci-omap and address 16               
usb 2-2: New USB device found, idVendor=05a9, idProduct=a538                    
usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0               
usb 2-2: Product: OV538 USB camera-013008-1                                     
usb 2-2: Manufacturer: OmniVision Application Team                              
usb 2-2: configuration #1 chosen from 1 choice                                  
gspca: probing 05a9:a538                                                        
ov538: sensor is ov7691                                                         
gspca: probe ok  

every time...
This sometimes happen and simetimes in some boot is ok. But when I start some transaction
I have similar problem write packet on the usb device. Can you have any idea?

Michael

Re: hub 2-0:1.0: port 2 disabled by hub (EMI?), re-enabling...

[Michael Trimarchi]

Michael Trimarchi wrote:
> Hi all,
> 
> I'm working on a overo board + a palo43 daughter board. I connect a 
> camera to hit with the following result:
> 
> hub 2-0:1.0: port 2 disabled by hub (EMI?), 
> re-enabling...                      usb 2-2: USB disconnect, address 
> 16                                             gspca: disconnect 
> complete usb 2-2: new high speed USB device using ehci-omap and address 
> 16               usb 2-2: New USB device found, idVendor=05a9, 
> idProduct=a538                    usb 2-2: New USB device strings: 
> Mfr=1, Product=2, SerialNumber=0               usb 2-2: Product: OV538 
> USB camera-013008-1                                     usb 2-2: 
> Manufacturer: OmniVision Application Team                              
> usb 2-2: configuration #1 chosen from 1 
> choice                                  gspca: probing 
> 05a9:a538                                                        ov538: 
> sensor is ov7691                                                         
> gspca: probe ok 
> every time...
> This sometimes happen and simetimes in some boot is ok. But when I start 
> some transaction
> I have similar problem write packet on the usb device. Can you have any 
> idea?

Ok I use isoc transfer to the sensor and I use a 2.6.29 kernel openembedded tree.

# CONFIG_USB_C67X00_HCD is not set
CONFIG_USB_EHCI_HCD=y
CONFIG_OMAP_EHCI_PHY_MODE=y
# CONFIG_OMAP_EHCI_TLL_MODE is not set
CONFIG_USB_EHCI_ROOT_HUB_TT=y

Is there a part of the support patched where I can check?

Michael

> 
> Michael
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