Devices can be found inside sysfs (check my previous post) If you don't have mknod you have the following possibilities: - get busybox. There are also bionic builds of busybox, so it should work without problems. - write an mknod command, ad it's actually only a basic kernel call. You will have to do this for the reset partition table ioctl call anyway - modify init.rc and ueventd.rc so they will pre-create the appropriate block devices. The major and minor numbers for sdx are known, and they don't change SztupY Umakanta Patro <umakanta.patro@xxxxxxxxxxxxxxxxx> wrote: >Hi Kishon, > >Thanks for your reply. > >But unfortunately I don't have udev/mdev, as I am working with an >Android file system. Also as there is no busybox, so I am not able to >find the mknod command. > >Also the output of cat /proc/devices does not give any usb devices >listed under the Block Devices category, and the output is as follows: > >> # cat /proc/devices >> Character devices: >> 1 mem >> 2 pty >> 3 ttyp >> 4 /dev/vc/0 >> 4 tty >> 4 ttyS >> 5 /dev/tty >> 5 /dev/console >> 5 /dev/ptmx >> 7 vcs >> 10 misc >> 13 input >> 29 fb >> 81 video4linux >> 90 mtd >> 128 ptm >> 136 pts >> 180 usb >> 188 ttyUSB >> 189 usb_device >> 251 daq_usbgpio >> 252 memalloc >> 253 hx170dec >> 254 rtc >> >> Block devices: >> 1 ramdisk >> 259 blkext >> 7 loop >> 8 sd >> 31 mtdblock >> 65 sd >> 66 sd >> 67 sd >> 68 sd >> 69 sd >> 70 sd >> 71 sd >> 128 sd >> 129 sd >> 130 sd >> 131 sd >> 132 sd >> 133 sd >> 134 sd >> 135 sd >> 179 mmc > >Please guide me in this case on what steps need to be taken. > >Thanks & regards, >Umakanta Patro > > > >On 1/27/2012 11:51 AM, ABRAHAM, KISHON VIJAY wrote: >> 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 ��.n��������+%������w��{.n�����{���)�� jg��� �����ݢj����G���� ���j:+v���w�m������w�������h�����٥
