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scsi_get_vpd_page
Langue: en
Version: October 2010 (fedora - 01/12/10)
Section: 9 (Appels noyau Linux)
NAME
scsi_get_vpd_page - Get Vital Product Data from a SCSI deviceSYNOPSIS
- int scsi_get_vpd_page(struct scsi_device * sdev, u8 page, unsigned char * buf, int buf_len);
ARGUMENTS
sdev
- The device to ask
page
- Which Vital Product Data to return
buf
- where to store the VPD
buf_len
- number of bytes in the VPD buffer area
DESCRIPTION
SCSI devices may optionally supply Vital Product Data. Each 'page' of VPD is defined in the appropriate SCSI document (eg SPC, SBC). If the device supports this VPD page, this routine returns a pointer to a buffer containing the data from that page. The caller is responsible for calling kfree on this pointer when it is no longer needed. If we cannot retrieve the VPD page this routine returns NULL.
AUTHORS
James Bottomley <James.Bottomley@hansenpartnership.com>
- Author.
Rob Landley <rob@landley.net>
- Author.
COPYRIGHT
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