Hi, On Fri, Jan 27, 2012 at 10:23 AM, Umakanta Patro <umakanta.patro@xxxxxxxxxxxxxxxxx> wrote: > > > Dear All, > > Currently I am working on an AT91SAM9M260 based embedded board with linux > 2.6.35 ported to it (With Android file system). > > In this I am trying to use the USB Host port as a Mass storage function. > > For this I have configured my kernel with the following configurations: >> >> /CONFIG_USB_SUPPORT=y >> CONFIG_USB_ARCH_HAS_HCD=y >> CONFIG_USB_ARCH_HAS_OHCI=y >> CONFIG_USB_ARCH_HAS_EHCI=y >> CONFIG_USB=y >> CONFIG_USB_DEBUG=y >> # CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set >> / > > / > > / >> >> /# >> # Miscellaneous USB options >> # >> CONFIG_USB_DEVICEFS=y >> # CONFIG_USB_DEVICE_CLASS is not set >> # CONFIG_USB_DYNAMIC_MINORS is not set >> # CONFIG_USB_MON is not set >> # CONFIG_USB_WUSB is not set >> # CONFIG_USB_WUSB_CBAF is not set >> >> / >> /# >> # USB Host Controller Drivers >> # >> # CONFIG_USB_C67X00_HCD is not set >> CONFIG_USB_EHCI_HCD=y >> # CONFIG_USB_EHCI_ROOT_HUB_TT is not set >> # CONFIG_USB_EHCI_TT_NEWSCHED is not set >> # CONFIG_USB_OXU210HP_HCD is not set >> # CONFIG_USB_ISP116X_HCD is not set >> # CONFIG_USB_ISP1760_HCD is not set >> # CONFIG_USB_ISP1362_HCD is not set >> CONFIG_USB_OHCI_HCD=y >> # CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set >> # CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set >> CONFIG_USB_OHCI_LITTLE_ENDIAN=y >> # CONFIG_USB_SL811_HCD is not set >> # CONFIG_USB_R8A66597_HCD is not set >> # CONFIG_USB_HWA_HCD is not set >> # CONFIG_USB_MUSB_HDRC is not set >> # CONFIG_USB_GADGET_MUSB_HDRC is not set >> / >> /# >> # USB Device Class drivers >> # >> # CONFIG_USB_ACM is not set >> # CONFIG_USB_PRINTER is not set >> # CONFIG_USB_WDM is not set >> # CONFIG_USB_TMC is not set >> / > > / > / >> >> /# >> # also be needed; see USB_STORAGE Help for more info >> # >> CONFIG_USB_STORAGE=y >> CONFIG_USB_STORAGE_DEBUG=y >> # CONFIG_USB_STORAGE_DATAFAB is not set >> # CONFIG_USB_STORAGE_FREECOM is not set >> CONFIG_USB_STORAGE_ISD200=y >> # CONFIG_USB_STORAGE_USBAT is not set >> # CONFIG_USB_STORAGE_SDDR09 is not set >> # CONFIG_USB_STORAGE_SDDR55 is not set >> # CONFIG_USB_STORAGE_JUMPSHOT is not set >> # CONFIG_USB_STORAGE_ALAUDA is not set >> # CONFIG_USB_STORAGE_ONETOUCH is not set >> # CONFIG_USB_STORAGE_KARMA is not set >> # CONFIG_USB_STORAGE_CYPRESS_ATACB is not set >> # CONFIG_USB_LIBUSUAL is not set/ > > >> /# >> # SCSI device support >> # >> CONFIG_SCSI_MOD=y >> # CONFIG_RAID_ATTRS is not set >> CONFIG_SCSI=y >> CONFIG_SCSI_DMA=y >> # CONFIG_SCSI_TGT is not set >> # CONFIG_SCSI_NETLINK is not set >> CONFIG_SCSI_PROC_FS=y >> >> # >> # SCSI support type (disk, tape, CD-ROM) >> # >> CONFIG_BLK_DEV_SD=y >> # CONFIG_CHR_DEV_ST is not set >> # CONFIG_CHR_DEV_OSST is not set >> # CONFIG_BLK_DEV_SR is not set >> # CONFIG_CHR_DEV_SG is not set >> # CONFIG_CHR_DEV_SCH is not set >> CONFIG_SCSI_MULTI_LUN=y >> CONFIG_SCSI_CONSTANTS=y >> # CONFIG_SCSI_LOGGING is not set >> # CONFIG_SCSI_SCAN_ASYNC is not set >> CONFIG_SCSI_WAIT_SCAN=m/ > > > And with this configuration when I plug in a Mass storage device, I get the > following console message > >> *usb 1-2: new high speed USB device using atmel-ehci and address 2 >> usb 1-2: New USB device found, idVendor=0951, idProduct=1607 >> usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 >> usb 1-2: Product: DataTraveler 2.0 >> usb 1-2: Manufacturer: Kingston >> usb 1-2: SerialNumber: 5B831B00044D >> scsi0 : usb-storage 1-2:1.0 >> scsi 0:0:0:0: Direct-Access Kingston DataTraveler 2.0 PMAP PQ: 0 ANSI: >> 0 CCS >> sd 0:0:0:0: [sda] 3919872 512-byte logical blocks: (2.00 GB/1.86 GiB) >> sd 0:0:0:0: [sda] Write Protect is off >> sd 0:0:0:0: [sda] Assuming drive cache: write through >> sd 0:0:0:0: [sda] Assuming drive cache: write through >> sda: >> sda1 >> sd 0:0:0:0: [sda] Assuming drive cache: write through >> sd 0:0:0:0: [sda] Attached SCSI removable disk* > > > This mass storage device is FAT32 formatted.But unfortunately, when I try to > check for the /dev/sda1 I don't find any node created. Also with the USB Device nodes are created automatically if you have mdev/udev utility in your fs. Alternatively you can create a device node yourself by using mknod utility passing the major and minor number (see cat /proc/devices). Thanks Kishon -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
