Re: Internal SD card reader, Dell laptop

From: Roland Smith (rsmith_at_xs4all.nl)
Date: 09/05/05

  • Next message: Chris: "Bootable Key drives" 
    Date: Mon, 5 Sep 2005 18:03:30 +0200
To: Ben Paley <ben@spooty.net>

    On Mon, Sep 05, 2005 at 03:26:22PM +0100, Ben Paley wrote:
    > > > Is that it?
    > >
    > > I think so. According to the following page,
    > > http://www.math.ucla.edu/~jimc/insp6000/p-proc.html#sd it is a Ricoh
    > > R5c576A chip. Looking at the Ricoh page for this chip,
    > > http://www.ricoh.com/LSI/product_pcif/pcc/5c576a/ there seems to be no
    > > programming info available.
    > >
    > > AFAICT, there is no Linux driver either, but someone seems to be working
    > > on it: http://list.drzeus.cx/pipermail/wbsd-devel/2005-March/000261.html
    > > You could try contacting this person to see how far his efforts have
    > > come, and who the FreeBSD kernel developer is who is working on this.
    >
    > Thanks a lot for your advice - I shall follow it, even if it is slightly
    > dispiriting. Perhaps I should learn C properly and start writing some
    > drivers... :-)

    Not that I want to discourage you, but that seems like a tall
    order. Apart from knowing C, you'd have to get familiar with the FreeBSD
    kernel and writing device drivers.

    I guess a driver for an SD card reader should be similar to the USB
    umass(4) driver. It should also handle disks by using the CAM transport
    layer and da(4) devices.

    If you are serious about writing a driver, I would recommend reading
    "The Design and Implementation of the FreeBSD Operating System" by
    McKusick and Neville-Neil.

    Roland 

    -- 
R.F.Smith (http://www.xs4all.nl/~rsmith/) Please send e-mail as plain text.
public key: http://www.xs4all.nl/~rsmith/pubkey.txt

    • application/pgp-signature attachment: stored
  • Next message: Chris: "Bootable Key drives"

    Relevant Pages

    • [PATCH] Fix misspellings collected by members of KJ list.
      ... - * writting a Wavelan ISA driver for the MACH microkernel. ... there are two posibilities reading or writing. ... - * on non x86 architectures, so if you are writting portable code, ...
      (Linux-Kernel)
    • Re: linux ioremap equivalent on freebsd
      ... nozomidriver to freebsd. ... Make sure you review the handbook on device driver writing: ...
      (freebsd-hackers)
    • Re: Driver Development Books?
      ... >> Amazon.com I have not been able to find any books on writing driver ... >> One of my security related books, Rootkits, tells me about how to write ... >> application which automates a skeletal version of the driver you need, ... Embedded FreeBSD cookbook, by Paul Cevoli ...
      (freebsd-hackers)
    • Re: X-CD Roast question again please
      ... Using generic SCSI-3/mmc CD-R driver. ... Disk sub type: Medium Type A, ... ATIP start of lead in: -11318 ... writing 152 KB of pad data. ...
      (RedHat)
    • Re: number of /dev/usb nodes
      ... Hash: SHA1 ... I'm writing ... as a driver you get informed for each new device. ... I never said I was writing a FreeBSD driver... ...
      (freebsd-hackers)