[ECOS] JFFS2 questions with eCos

Steven_cheng 05071@alphanetworks.com
Thu Sep 29 09:47:00 GMT 2005


Hi Andrew,

        I find that there is the FSTAB_ENTRY as following if I turn on the
CYGOPT_FS_JFFS2_WRITE :

FSTAB_ENTRY(jffs2_fste, "jffs2", 0,
     CYG_SYNCMODE_FILE_FILESYSTEM | CYG_SYNCMODE_IO_FILESYSTEM,
     jffs2_mount,
     jffs2_umount,
     jffs2_open,
     jffs2_ops_unlink,
     jffs2_ops_mkdir,
     jffs2_ops_rmdir,
     jffs2_ops_rename,
     jffs2_ops_link,
     jffs2_opendir,
     jffs2_chdir, jffs2_stat, jffs2_getinfo, jffs2_setinfo);

Question :
Q1 :There are the functions to write the  jffs2 filesystem,
but currently RedBoot does not support the commands.
So we can not write (create) a file/dir into the jffs2 image.
Is it correct ??

Q2 : It is the same with FAT filesystem as JFFS2 filesystem,
currentky it does not support the write command.
Is it correct ??

Q3: If I add the some commands likes open (create) by using above functions,
then I can create a file into jffs2 filesystem.
Is it correct ??


Thank you~~

Steven Cheng

----- Original Message ----- 
From: "Andrew Lunn" <andrew@lunn.ch>
To: "Steven_cheng" <05071@alphanetworks.com>
Cc: <ecos-discuss@sources.redhat.com>
Sent: Wednesday, September 21, 2005 2:47 PM
Subject: Re: [ECOS] JFFS2 questions with eCos


> On Wed, Sep 21, 2005 at 01:47:39PM +0800, Steven_cheng wrote:
> > Hi Andrew,
> >
> > > > Does it have the command like "ls" or "dir" to display
> > > > the content of the jffs2 imge ??
> > >
> > > There is an ls command.
> > >
> > > You can also load images into memory using the file method.
> >
> > I try to use the ls, load command, it works.
> > Are there other commands to support with JFFS2 filesystem,
> > like write, copy, delete ??
>
> No.
>         Andrew
>
> -- 
> Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
> and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
>


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