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Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/blockdev/paride.rst | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/Documentation/admin-guide/blockdev/paride.rst b/Documentation/admin-guide/blockdev/paride.rst index e1ce90af602a..e431a1ef41eb 100644 --- a/Documentation/admin-guide/blockdev/paride.rst +++ b/Documentation/admin-guide/blockdev/paride.rst @@ -2,6 +2,9 @@ Linux and parallel port IDE devices =================================== +Most of this document describes the old paride driver. For the new libata +pata_parport drivrer, jump to the section 4 at the end. + PARIDE v1.03 (c) 1997-8 Grant Guenther <grant@torque.net> 1. Introduction @@ -437,3 +440,52 @@ You might also find some useful information on the linux-parport web pages (although they are not always up to date) at http://web.archive.org/web/%2E/http://www.torque.net/parport/ + +4. pata_parport driver +====================== +pata_parport is a libata-based driver that uses the same low-level protocol +drivers as PARIDE but there are no high-level drivers (pd, pcd, pf, pt, pg). +The IDE devices behind parallel port adapters are handled by the ATA layer. + +The device creation is also changed - no protocol numbers or parport I/O +addresses are used. + +All parports and all protocol drivers are probed automatically unless probe=0 +parameter is used. So just "modprobe epat" is enough for a Imation SuperDisk +drive to work. + +Manual device creation:: + + # echo "port protocol mode unit delay" >/sys/bus/pata_parport/new_device + +where: + + ======== ================================================ + port parport name (or "auto" for all parports) + protocol protocol name (or "auto" for all protocols) + mode mode number (protocol-specific) or -1 for probe + unit unit number (see the paride documentation above) + delay I/O delay (see the paride documentation above) + ======== ================================================ + +If you omit the parameters from the end, defaults will be used, e.g.: + +Probe all parports with all protocols:: + + # echo auto >/sys/bus/pata_parport/new_device + +Probe parport0 using protocol epat and mode 4 (EPP-16):: + + # echo "parport0 epat 4" >/sys/bus/pata_parport/new_device + +Probe parport0 using all protocols:: + + # echo "parport0 auto" >/sys/bus/pata_parport/new_device + +Probe all parports using protoocol epat:: + + # echo "auto epat" >/sys/bus/pata_parport/new_device + +Deleting devices:: + + # echo pata_parport.0 >/sys/bus/pata_parport/delete_device |