Commit a3ec723a949d65bf0349cdf60958036454927729
Committed by
James Bottomley
1 parent
16b3858ec9
Exists in
master
and in
7 other branches
[SCSI] Update wording of CONFIG_SCSI_MULTI_LUN help
I had to set CONFIG_SCSI_MULTI_LUN to y in order to get my SE W595 working when plugging it as a mass storage. Looking at SCSI option to get a phone behaving correctly was convoluted to say the least. There are quite a few other reports about USB card readers needing this option as well. This patch improves the help text to make the use of the option more obvious. Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Showing 1 changed file with 9 additions and 10 deletions Side-by-side Diff
drivers/scsi/Kconfig
... | ... | @@ -191,20 +191,19 @@ |
191 | 191 | it has an enclosure device. Selecting this option will just allow |
192 | 192 | certain enclosure conditions to be reported and is not required. |
193 | 193 | |
194 | -comment "Some SCSI devices (e.g. CD jukebox) support multiple LUNs" | |
195 | - depends on SCSI | |
196 | - | |
197 | 194 | config SCSI_MULTI_LUN |
198 | 195 | bool "Probe all LUNs on each SCSI device" |
199 | 196 | depends on SCSI |
200 | 197 | help |
201 | - If you have a SCSI device that supports more than one LUN (Logical | |
202 | - Unit Number), e.g. a CD jukebox, and only one LUN is detected, you | |
203 | - can say Y here to force the SCSI driver to probe for multiple LUNs. | |
204 | - A SCSI device with multiple LUNs acts logically like multiple SCSI | |
205 | - devices. The vast majority of SCSI devices have only one LUN, and | |
206 | - so most people can say N here. The max_luns boot/module parameter | |
207 | - allows to override this setting. | |
198 | + Some devices support more than one LUN (Logical Unit Number) in order | |
199 | + to allow access to several media, e.g. CD jukebox, USB card reader, | |
200 | + mobile phone in mass storage mode. This option forces the kernel to | |
201 | + probe for all LUNs by default. This setting can be overriden by | |
202 | + max_luns boot/module parameter. Note that this option does not affect | |
203 | + devices conforming to SCSI-3 or higher as they can explicitely report | |
204 | + their number of LUNs. It is safe to say Y here unless you have one of | |
205 | + those rare devices which reacts in an unexpected way when probed for | |
206 | + multiple LUNs. | |
208 | 207 | |
209 | 208 | config SCSI_CONSTANTS |
210 | 209 | bool "Verbose SCSI error reporting (kernel size +=12K)" |