other versions
| SCSI_REPORT_OPCODE(9) | SCSI mid layer | SCSI_REPORT_OPCODE(9) |
NAME¶
scsi_report_opcode - Find out if a given command opcode is supported
SYNOPSIS¶
int scsi_report_opcode(struct scsi_device * sdev, unsigned char * buffer, unsigned int len, unsigned char opcode);
ARGUMENTS¶
struct scsi_device * sdev
scsi device to query
unsigned char * buffer
scratch buffer (must be at least 20 bytes long)
unsigned int len
length of buffer
unsigned char opcode
opcode for command to look up
DESCRIPTION¶
Uses the REPORT SUPPORTED OPERATION CODES to look up the given opcode. Returns -EINVAL if RSOC fails, 0 if the command opcode is unsupported and 1 if the device claims to support the command.
AUTHORS¶
James Bottomley <James.Bottomley@hansenpartnership.com>
Author.
Rob Landley <rob@landley.net>
Author.
COPYRIGHT¶
| June 2017 | Kernel Hackers Manual 4.11 |