report error during block I/O transfer
void prefixprint (dev_t dev, char *str);
entry point routine sends warning messages
from the driver to the console
when the kernel detects abnormal situations
during the block I/O operation
that is executed by the
character string describing the problem.
The nature of the problem
contained in str
should be included in the driver output.
Context and synchronization
The driver can block but cannot do operations such as
that require access to
the requesting process's address space.
1, 2, 2mp, 3, 3mp, 4, 4mp, 5, 5mp, 6, 6mp
SVR5 DDI compatibility
DDI drivers do not use a
entry point routine.
This functionality is built into the
entry point for DDI 8 and later drivers
entry point for DDI versions prior to version 8.
Drivers that contain a
routine must have a b in the second column of the
file to indicate that it is a block device.
The kernel expects a
routine for every block driver that is configured.
19 June 2005
© 2005 The SCO Group, Inc. All rights reserved.
OpenServer 5 HDK - June 2005