[ros-kernel] Atapi device detection bug
Filip Navara
xnavara at volny.cz
Fri Sep 17 19:04:25 CEST 2004
Hartmut Birr wrote:
>I agree with Eric. We should change back to the device reset command. Many
>computers have on the secondary ide chanel only a cdrom drive which is
>configured as slave. Many drives does response to a software reset after
>10..20 sec in this configuration. But they do response immediately to a
>device reset command.
>
>
The previous code is illegal according to the ATA/ATAPI-6 standard. The
device reset command is mandatory for ATAPI devices and calling it on
ATA devices is strictly prohibited! I would accept any solution that
will not send the DEVICE RESET command to ATA drives, be it software
reset (as used by many other OSes) or something else.
- Filip
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