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authormatthieu castet <castet.matthieu@free.fr>2008-03-19 19:40:52 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2008-04-24 21:16:42 -0700
commitd277064e7e16d02e0078a6bc1820764ae00dea87 (patch)
tree18f78d06f8bc3d5a57a04ac46d4f75ca5757faad /drivers/usb/storage/Kconfig
parentdda43a0e03a33dd716fb34f812b1af614f74daff (diff)
downloadop-kernel-dev-d277064e7e16d02e0078a6bc1820764ae00dea87.zip
op-kernel-dev-d277064e7e16d02e0078a6bc1820764ae00dea87.tar.gz
USB: mass storage: emulation of sat scsi_pass_thru with ATACB
I have got a cypress usb-ide bridge and I would like to tune or monitor my disk with tools like hdparm, hddtemp or smartctl. My controller support a way to send raw ATA command to the disk with something call atacb (see http://download.cypress.com.edgesuite.net/design_resources/datasheets/contents/cy7c68300c_8.pdf). Atacb support can be added for each application, but there is some disadvantages : - all application need to be patched - A race is possible if there other accesses, because the emulation can be split in 2 atacb scsi transactions. One for sending the command, one for reading the register (if ck_cond is set). I have implemented the emulation in usb-storage with a special proto_handler, and an unsual entry. Signed-off-by: Matthieu CASTET <castet.matthieu@free.fr> Signed-off-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/storage/Kconfig')
-rw-r--r--drivers/usb/storage/Kconfig11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/usb/storage/Kconfig b/drivers/usb/storage/Kconfig
index 05cfc84..d3e5f88 100644
--- a/drivers/usb/storage/Kconfig
+++ b/drivers/usb/storage/Kconfig
@@ -145,6 +145,17 @@ config USB_STORAGE_KARMA
on the resulting scsi device node returns the Karma to normal
operation.
+config USB_STORAGE_CYPRESS_ATACB
+ bool "SAT emulation on Cypress USB/ATA Bridge with ATACB"
+ depends on USB_STORAGE
+ ---help---
+ Say Y here if you want to use SAT (ata pass through) on devices based
+ on the Cypress USB/ATA bridge supporting ATACB. This will allow you
+ to use tools to tune and monitor your drive (like hdparm or smartctl).
+
+ If you say no here your device will still work with the standard usb
+ mass storage class.
+
config USB_LIBUSUAL
bool "The shared table of common (or usual) storage devices"
depends on USB
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