Description of a speed capability as reported by the drive in conjunction with eventually loaded media. More...

#include <libburn.h>

Data Fields
int	source
	Where this info comes from : 0 = misc , 1 = mode page 2Ah , 2 = ACh GET PERFORMANCE. More...

int	profile_loaded
	The media type that was current at the time of report -2 = state unknown, -1 = no media was loaded , else see burn_disc_get_profile() More...

char	profile_name [80]

int	end_lba
	The attributed capacity of appropriate media in logical block units i.e. More...

int	write_speed
	Speed is given in 1000 bytes/s , 0 = invalid. More...

int	read_speed

int	wrc
	Expert info from ACh GET PERFORMANCE and/or mode page 2Ah. More...

int	exact

int	mrw

struct burn_speed_descriptor *	prev
	List chaining. More...

struct burn_speed_descriptor *	next

Detailed Description

Description of a speed capability as reported by the drive in conjunction with eventually loaded media.

There can be more than one such object per drive. So they are chained via .next and .prev , where NULL marks the end of the chain. This list is set up by burn_drive_scan() and gets updated by burn_drive_grab(). A copy may be obtained by burn_drive_get_speedlist() and disposed by burn_drive_free_speedlist(). For technical background info see SCSI specs MMC and SPC: mode page 2Ah (from SPC 5Ah MODE SENSE) , mmc3r10g.pdf , 6.3.11 Table 364 ACh GET PERFORMANCE, Type 03h , mmc5r03c.pdf , 6.8.5.3 Table 312

Definition at line 713 of file libburn.h.

Field Documentation

int burn_speed_descriptor::end_lba

The attributed capacity of appropriate media in logical block units i.e.

2352 raw bytes or 2048 data bytes. -1 = capacity unknown.

Definition at line 727 of file libburn.h.

int burn_speed_descriptor::exact

Definition at line 739 of file libburn.h.

int burn_speed_descriptor::mrw

Definition at line 741 of file libburn.h.

struct burn_speed_descriptor* burn_speed_descriptor::next

Definition at line 745 of file libburn.h.

struct burn_speed_descriptor* burn_speed_descriptor::prev

List chaining.

Use .next until NULL to iterate over the list

Definition at line 744 of file libburn.h.

int burn_speed_descriptor::profile_loaded

The media type that was current at the time of report -2 = state unknown, -1 = no media was loaded , else see burn_disc_get_profile()

Definition at line 722 of file libburn.h.

char burn_speed_descriptor::profile_name[80]

Definition at line 723 of file libburn.h.

int burn_speed_descriptor::read_speed

Definition at line 732 of file libburn.h.

int burn_speed_descriptor::source

Where this info comes from : 0 = misc , 1 = mode page 2Ah , 2 = ACh GET PERFORMANCE.

Definition at line 717 of file libburn.h.

int burn_speed_descriptor::wrc

Expert info from ACh GET PERFORMANCE and/or mode page 2Ah.

Expect values other than 0 or 1 to get a meaning in future.

Definition at line 737 of file libburn.h.

int burn_speed_descriptor::write_speed

Speed is given in 1000 bytes/s , 0 = invalid.

The numbers are supposed to be usable with burn_drive_set_speed()

Definition at line 731 of file libburn.h.

The documentation for this struct was generated from the following file:

libburn.h

Data Fields

Detailed Description

Field Documentation