On 5/29/07, Yongsheng Yang <[EMAIL PROTECTED]> wrote:
>
> Thanks! You are right.
>
> But I still have one question:
> When I plugin a compact flash card to the USB adaptor, the Slax will create
> sdb,sdb1,sdb2,sdb5,sdb6. Five files in /dev directory. (The compact flash
> has Linux OS which is used to boot system and total size is 64M)
> And I write a Java program to read these files byte by byte, the total size
> (sdb1+sdb2+sdb5+sdb6) is bigger than 64M.
> That means some files are created duplicated?
I have no idea, but this is certainly completely unrelated to
javax.usb. You should investigate some Linux documentation.
>
> I really don't know how the mounting process in Slax. And I don't know the
> first(start) byte physical location(in sdb1 or sdb6?).
>
> Any one can give me some information how the sdb1 created?
Again, you are on the wrong mailing list. This list is for javax.usb.
>
> Regard
>
>
> ----- Original Message ----
> From: Dan Streetman <[EMAIL PROTECTED]>
> To: Yongsheng Yang <[EMAIL PROTECTED]>
> Cc: javax-usb-devel@lists.sourceforge.net
> Sent: Monday, May 28, 2007 8:17:42 AM
> Subject: Re: [javax-usb-devel] Read USB device
>
> Unless you want to implement the entire USB mass storage layer, you
> don't want to use javax.usb to read your block device. You should
> instead just use normal file I/O, like a FileReader or some other
> reader. For example:
>
> FileReader reader = new FileReader(new File("/dev/sdb1"));
> reader.read(buffer, offset, length);
>
> On 5/26/07, Yongsheng Yang <[EMAIL PROTECTED]> wrote:
> >
> > Hi:
> >
> > After USB key inserted, the new drive will be mounted as sdb1_removable (I
> > am using Slax).
> > I want to use javax-usb API to read the block device (/dev/sdb1) byte by
> > byte and calculate the CRC byte.
> > There is any sample Java code for this purpose?
> >
> > Thanks!
> >
> >
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