4 0x10 16 Immediate return on BIOS seek command. (Not used)
(*)5 0x20 32 Check for LUNs >= 1.
- The default for LUN Check depends on CONFIG_SCSI_MULTI_LUN.
-
* TaggedCmnds is a number indicating the maximum number of Tagged Commands.
It is the binary logarithm - 1 of the actual number. Max is 4 (32).
Value Number of Tagged Commands
it has an enclosure device. Selecting this option will just allow
certain enclosure conditions to be reported and is not required.
-config SCSI_MULTI_LUN
- bool "Probe all LUNs on each SCSI device"
- depends on SCSI
- help
- Some devices support more than one LUN (Logical Unit Number) in order
- to allow access to several media, e.g. CD jukebox, USB card reader,
- mobile phone in mass storage mode. This option forces the kernel to
- probe for all LUNs by default. This setting can be overridden by
- max_luns boot/module parameter. Note that this option does not affect
- devices conforming to SCSI-3 or higher as they can explicitly report
- their number of LUNs. It is safe to say Y here unless you have one of
- those rare devices which reacts in an unexpected way when probed for
- multiple LUNs.
-
config SCSI_CONSTANTS
bool "Verbose SCSI error reporting (kernel size +=12K)"
depends on SCSI
CFG_PARAM_UNSET,
0,
0x2f,
-#ifdef CONFIG_SCSI_MULTI_LUN
- NAC_SCANLUN |
-#endif
+ NAC_SCANLUN |
NAC_GT2DRIVES | NAC_GREATER_1G | NAC_POWERON_SCSI_RESET
/*| NAC_ACTIVE_NEG*/,
NAC_GT2DRIVES | NAC_GREATER_1G | NAC_POWERON_SCSI_RESET | 0x08
if (host->max_id - 1 == eeprom->scsi_id)
host->max_id--;
-#ifdef CONFIG_SCSI_MULTI_LUN
if (eeprom->channel_cfg & NAC_SCANLUN)
host->max_lun = 8;
else
host->max_lun = 1;
-#else
- host->max_lun = 1;
-#endif
-
}
#define SCSI_NCR_SG_TABLESIZE (SCSI_NCR_MAX_SCATTER)
#define SCSI_NCR_TIMER_INTERVAL (HZ)
-#if 1 /* defined CONFIG_SCSI_MULTI_LUN */
#define SCSI_NCR_MAX_LUN (16)
-#else
-#define SCSI_NCR_MAX_LUN (1)
-#endif
/*
* IO functions definition for big/little endian CPU support.
#define MAX_SCSI_LUNS 512
-#ifdef CONFIG_SCSI_MULTI_LUN
static unsigned int max_scsi_luns = MAX_SCSI_LUNS;
-#else
-static unsigned int max_scsi_luns = 1;
-#endif
module_param_named(max_luns, max_scsi_luns, uint, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(max_luns,
This option depends on 'SCSI' support being enabled, but you
probably also need 'SCSI device support: SCSI disk support'
- (BLK_DEV_SD) for most USB storage devices. Some devices also
- will require 'Probe all LUNs on each SCSI device'
- (SCSI_MULTI_LUN).
+ (BLK_DEV_SD) for most USB storage devices.
To compile this driver as a module, choose M here: the
module will be called usb-storage.