problem with usb driver

[Altera_Forum]

hi,

I have boot uclinux kernel successful,then i plug a usb disk on my board,that's ok.But it show errors when i run the follow code:

[/CODE]fdisk -l /dev/sda

fdisk:Bad command or file name

[CODE]mount -t vfat /dev/sda1 /mnt

FAT:Code page cp437 not found

mount failed:Invalid argument[/B]

please help me,thank you!

[Altera_Forum]

TO_BE_DONE

[Altera_Forum]

TO_BE_DONE

[Altera_Forum]

Hi,hippo. I have solved the usb problem by enable fdisk in busybox. Now,I want to programme my apps by using the device driver,how can i do? Which files should i include? Thahk you! http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/smile.gif

[Altera_Forum]

--- Quote Start ---  originally posted by zhengkaike@Jun 4 2006, 10:02 PM  hi,hippo. i have solved the usb problem by enable fdisk in busybox. now,i want to programme my apps by using the device driver,how can i do? which files should i include? thahk you!  http://forum.niosforum.com/work2/style_emoticons/<#emo_dir#>/smile.gif  <div align='right'><{post_snapback}> (index.php?act=findpost&pid=15884)  --- quote end ---    --- Quote End ---   You can access the mounted usb disk as normal file. So just include stdio.h and stdlib.h should work.

[Altera_Forum]

Hi,hippo. 

Could you tell me how to hang a usb disk on my board automatic not by execute  the "mount" command in nios2-termimal?   Thank you!

[Altera_Forum]

--- Quote Start ---  originally posted by zhengkaike@Jun 5 2006, 03:12 PM hi,hippo.   could you tell me how to hang a usb disk on my board automatic not by execute  the "mount" command in nios2-termimal?     thank you! <div align='right'><{post_snapback}> (index.php?act=findpost&pid=15901)  --- quote end ---    --- Quote End ---   You can add the mount command or other initialization into vendors/Altera/nios2nommu/rc . it will be installed to romfs/etc/rc .

[Altera_Forum]

--- Quote Start ---  originally posted by hippo+jun 5 2006, 02:28 am--><div class='quotetop'>quote (hippo @ jun 5 2006, 02:28 am)</div>  --- quote start ---  <!--quotebegin-zhengkaike@Jun 5 2006, 03:12 PM hi,hippo.   could you tell me how to hang a usb disk on my board automatic not by execute  the "mount" command in nios2-termimal?     thank you! <div align='right'><{post_snapback}> (index.php?act=findpost&pid=15901)  --- quote end ---    --- Quote End ---   You can add the mount command or other initialization into vendors/Altera/nios2nommu/rc . it will be installed to romfs/etc/rc . <div align='right'><{post_snapback}> (index.php?act=findpost&pid=15902)</div> [/b]  --- Quote End ---    Hi,hippo. I have added the mount command(#mount -t vfat /dev/sda1 /mnt)into vendors/Altera/nios2nommu/rc ,but it need to execute mount manual all the same,and there is nothing under the path of /mnt . please help me! thak you!

[Altera_Forum]

did you rebuild the kernel with, 

make make romfs make linux image ?  What is your boot message now?  May be you have to add busybox sleep, and wait several seconds for usb disk to be detected before mount usb.  sleep 15 mount -t vfat /dev/sda1 /mnt

[Altera_Forum]

--- Quote Start ---  originally posted by hippo@Jun 5 2006, 05:32 AM did you rebuild the kernel with, make make romfs make linux image ?  what is your boot message now?  may be you have to add busybox sleep, and wait several seconds for usb disk to be detected before mount usb.  sleep 15 mount -t vfat /dev/sda1 /mnt <div align='right'><{post_snapback}> (index.php?act=findpost&pid=15911)  --- quote end ---    --- Quote End ---    Sorry,hippo. I can&#39;t solve the problem.  The mount command always be executed before the usb disk be detected. my step:  1. add the mount command into vendors/Altera/nios2nommu/rc . 2. make menuconfig  busybox-->[*]sleep 3. make  4. make romfs 5. make linux image  Is there any problem? Thank you.

[Altera_Forum]

add "make -C user/busybox clean" after step2. 

 boot uClinux, run "busybox", to see what you have built in busybox.  What is your rc now?

[Altera_Forum]

--- Quote Start ---  originally posted by hippo@Jun 5 2006, 08:41 PM add "make -c user/busybox clean" after step2.  boot uclinux, run "busybox", to see what you have built in busybox.  what is your rc now? <div align='right'><{post_snapback}> (index.php?act=findpost&pid=15934)  --- quote end ---    --- Quote End ---   Hi,hippo.  It can mount usb disk automatic,but show another erro: <div class='quotetop'>QUOTE </div>  --- Quote Start ---  Command: mount -t vfat /dev/sda1 /mnt Kernel panic - not syncing: Attempted to kill init! Execution Finished,Exiting[/b]  --- Quote End ---   My rc: <div class='quotetop'>QUOTE </div>  --- Quote Start ---  hostname uClinux mount -t proc proc /proc mount -t sysfs sysfs /sys mount -t usbfs none /proc/bus/usb  mkdir /var/tmp mkdir /var/log mkdir /var/run mkdir /var/lock mkdir /var/empty  ifconfig lo 127.0.0.1 route add -net 127.0.0.0 netmask 255.0.0.0 lo# dhcpcd -p -a eth0 & cat /etc/motd  sleep 15  mount -t vfat /dev/sda1 /mnt[/b]  --- Quote End ---   Now,i hope that it mount usb automatic when usb disk be detected,how can i do?

[Altera_Forum]

Check, 

http://www.tldp.org/howto/flash-memory-howto/ (http://www.tldp.org/howto/flash-memory-howto/) but I didn&#39;t try it yet.

[Altera_Forum]

I wrote a little shell script to mount the USB stick, but I dont know if this is the best solution. I wanted to port autofs first but it was to heavyweight. 

For the shell script I use /proc/partitions and /proc/mounts to automount. # !/bin/sh  while true do grep sda /proc/partitions > /dev/zero if test $? -eq 0; then  grep sda /proc/mounts > /dev/zero  if test $? -eq 1; then  echo "*** mount usbdisk ***"  mount -n -t vfat /dev/sda /mnt/usb  fi else  grep sda /proc/mounts > /dev/zero  if test $? -eq 0; then  echo "*** unmount usbdisk ***"  umount -n /mnt/usb  fi fi sleep 1 done

[Altera_Forum]

--- Quote Start ---  originally posted by nacide@Jun 8 2006, 03:03 AM i wrote a little shell script to mount the usb stick, but i dont know if this is the best solution. i wanted to port autofs first but it was to heavyweight. for the shell script i use /proc/partitions and /proc/mounts to automount. # !/bin/sh  while true do grep sda /proc/partitions > /dev/zero if test $? -eq 0; then   grep sda /proc/mounts > /dev/zero   if test $? -eq 1; then     echo "*** mount usbdisk ***"     mount -n -t vfat /dev/sda /mnt/usb   fi else   grep sda /proc/mounts > /dev/zero   if test $? -eq 0; then     echo "*** unmount usbdisk ***"     umount -n /mnt/usb   fi fi sleep 1 done <div align='right'><{post_snapback}> (index.php?act=findpost&pid=16023)  --- quote end ---    --- Quote End ---    hi,  Thank your reply. I did follow your reply,but it can&#39;t work. It show "Bad command or file name" for every command which your reply. Can anyone tell me where i take a mistake?

[Altera_Forum]

hi, 

Another question: How to run a shell script in my apps by execve() or other programmes? Thank you!

[Altera_Forum]

zhengkaike, 

 You need to have the commands that are called like mount, umount, grep, test, echo and sleep in your rootfs. Maybe it will also work with the busybox versions but I did not test this.  I call the shellscript from the rc script in /etc for example automount.sh &

[Altera_Forum]

--- Quote Start ---  originally posted by nacide@Jun 13 2006, 04:05 AM zhengkaike,  you need to have the commands that are called like mount, umount, grep, test, echo and sleep in your rootfs. maybe it will also work with the busybox versions but i did not test this.  i call the shellscript from the rc script in /etc for example automount.sh & <div align='right'><{post_snapback}> (index.php?act=findpost&pid=16150)  --- quote end ---    --- Quote End ---   Hi,nacide,  Thank you!  May be my busybox has some bugs,there are many errors when compiled.   I have resolved the problem by using mount() and umount(), it can work successful although it&#39;s not a best method. The code: <div class='quotetop'>QUOTE </div>  --- Quote Start ---  char spe_file[20]="/dev/sda1"; char cur_dir[]="/mnt/usb"; char um_dir[]="/mnt"; char subum_dir[]="usb/"; int main(void) {  if(mkdir(cur_dir,O_RDWR)==-1) {  //"/mnt/usb"exsit  if(umount(cur_dir)==-1) { printf("erro : umount usb!\n"); exit(1); }  chdir(um_dir);  if(rmdir(subum_dir)==-1) { printf("error rmdir %s \n",subum_dir); exit(1); } printf("umount usb ok!\n"); return 0;  }  if(mount(spe_file,cur_dir,"vfat",2,(char *)NULL)==-1)   {     printf("error :mount");     exit(1);   } printf("mount usb ok!\n"); return 0;  }[/b]  --- Quote End ---      Thank you for your reply again.