Struct burn_speed_descriptor 

#[repr(C)]
pub struct burn_speed_descriptor {
    pub source: c_int,
    pub profile_loaded: c_int,
    pub profile_name: [c_char; 80],
    pub end_lba: c_int,
    pub write_speed: c_int,
    pub read_speed: c_int,
    pub wrc: c_int,
    pub exact: c_int,
    pub mrw: c_int,
    pub prev: *mut burn_speed_descriptor,
    pub next: *mut burn_speed_descriptor,
}

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

Fields

source: c_int

Where this info comes from : 0 = misc 1 = mode page 2Ah 2 = ACh GET PERFORMANCE Type 03h 3 = ACh GET PERFORMANCE Type 00h Data Type 10h (read speed)

profile_loaded: c_int

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()

profile_name: [c_char; 80]

end_lba: c_int

The attributed capacity of appropriate media in logical block units i.e. 2352 raw bytes or 2048 data bytes. -1 = capacity unknown.

write_speed: c_int

Speed is given in 1000 bytes/s , 0 = invalid. The numbers are supposed to be usable with burn_drive_set_speed()

read_speed: c_int

wrc: c_int

Expert info from ACh GET PERFORMANCE and/or mode page 2Ah. Expect values other than 0 or 1 to get a meaning in future.

exact: c_int

mrw: c_int

prev: *mut burn_speed_descriptor

List chaining. Use .next until NULL to iterate over the list

next: *mut burn_speed_descriptor

Trait Implementations

impl Clone for burn_speed_descriptor

fn clone(&self) -> burn_speed_descriptor

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for burn_speed_descriptor

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for burn_speed_descriptor