Re: USB Flash Disk on OSK

[Eduardo Bezerra <edubezval@gmail.com>]

Hi Kanagesh,


  I have the same problem. It is really  a clock problem. Try to disable
the CONFIG_OMAP_RESET_CLOCKS options:

System Type  ---> TI OMAP Implementations  ---> [ ] Reset unused
clocks during boot

  I don't know if this error is in the USB subsystem or if it is a bug
in the code
that resets the clocks at boot time.
  I would like to know if it worked for you...

BR,

2005/12/26, Kanagesh R <kanagesh@india.com>:
> >
> > 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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--
Eduardo Bezerra Valentin