Re: USB Flash Disk on OSK

* Re: USB Flash Disk on OSK
@ 2005-12-26 11:51 Kanagesh R
  2005-12-26 13:41 ` Eduardo Bezerra
  0 siblings, 1 reply; 3+ messages in thread
From: Kanagesh R @ 2005-12-26 11:51 UTC (permalink / raw)
  To: Kanagesh R, linux-omap-open-source

> 
> Hello,
> 
> I am trying to get a Linksys USB-to-Wireless adapter working with 
> the OSK.  I started
> off by trying to check if the USB Master interface works using a 
> Flash disk.  When I
> plug in the USB disk, I see that usb interrupts do not occur.
> 
> I'm using a linux-2.4.16 kernel, patched with omap1 patch from 
> www.muru.com.  I've
> configured and built the kernel for OSK with the USB support 
> according to the document
> at OSK for dummies:
> 
> Device Drivers --->
> USB support --->
>   <*> Support for host-side USB ( CONFIG_USB )
>   <*> OHCI HCD support( CONFIG_USB_OHCI_HCD )
>   <*> USB Mass Storage Support( CONFIG_USB_STORAGE )
> 
> SCSI device support --->( CONFIG_SCSI )
>   <*> SCSI disk support( CONFIG_BLK_DEV_SD )
> 
> "File systems" --->
> "DOS/FAT/NT Filesystems" --->( CONFIG_FAT_FS)
>   <*> MSDOS fs support( CONFIG_MSDOS_FS )
>   <*> VFAT ( Windows-95 fs support)( CONFIG_VFAT_FS )
> 
> "File systems" --->
> "Partition Types"  --->
>   [*] Advanced partition selection( CONFIG_PARTITION_ADVANCED )
>   [*] PC BIOS (MSDOS partition table)( CONFIG_MSDOS_PARTITION )
> 
> "File systems" --->
> "Native Language Support" --->( CONFIG_NLS )
>   <*> Code Page 437 (United States...)( CONFIG_NLS_CODEPAGE_437 )
>   <*> NLS ISO8859 (Latan 1...)( CONFIG_NLS_ISO8859_1 )
> 
> As far as my understanding goes, irrespective of whether the
> device has been configured for USB Mass storage or not, if the
> device is recognized, USB interrupts should occur, which is not
> happening.
> 
> cat /proc/interrupt returns:
> 
> CPU0
>   19:          0   DMA
>   20:          0   DMA
>   21:          0   DMA
>   22:          0   DMA
>   23:          0   DMA
>   24:          0   DMA
>   25:          0   LCD DMA
>   31:          3   omap-lcdc
>   33:          1   omap-keypad
>   36:          0   i2c_omap
>   38:          0   ohci_hcd:usb1
>   46:        548   serial
>   54:     158278   32KHz timer
>   85:          0   DMA
>   86:          0   DMA
>   87:          0   DMA
>   88:          0   DMA
>   89:          0   DMA
>   90:          0   DMA
>   91:          0   DMA
>   92:          0   DMA
>   93:          0   DMA
>   94:          0   DMA
> 160:       1399   eth0
> 197:          0   serial wakeup
> 222:          0   omap_cf
> 
> 
> Has anyone successfully got the USB Master interface on the OSK5912
> to work fine?
> 
> Thanks in advance,
> 
> Regards,
> Kanagesh

Hello,

My apologies, the kernel that I am using right now is linux-2.6.13-omap1 (and not
linux-2.4.16 as mentioned).  

Further, I found from the list archives that there was a USB clock malfunction
in kernels 2.6.12 - 2.6.14.  I backported my work to 2.6.11-omap1 and I still
see the same problem.  However, when the system comes up, I see some stray USB
interrupts (even though there is no device plugged in).

When I plug in a memory disk or any other USB device, there're no USB interrupts.

Can anyone point me to what am doing wrong?

Thanks in advance
regards,
Kanagesh

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