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authorOliver Neukum <oneukum@suse.com>2019-11-14 12:27:58 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-12-17 19:55:32 +0100
commitd8fc2266c40fef226f3f0f6e5d839a75e2748c98 (patch)
tree4a7b78fb78ac25fcdce16e372970b4b472e1b79e /Documentation/admin-guide
parentbf2e403d150583eb3ef6d17aa80e263b0a2d41eb (diff)
USB: documentation: flags on usb-storage versus UAS
commit 65cc8bf99349f651a0a2cee69333525fe581f306 upstream. Document which flags work storage, UAS or both Signed-off-by: Oliver Neukum <oneukum@suse.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20191114112758.32747-4-oneukum@suse.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/admin-guide')
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt22
1 files changed, 12 insertions, 10 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 9983ac73b66d..f5a551e4332d 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -5101,13 +5101,13 @@
Flags is a set of characters, each corresponding
to a common usb-storage quirk flag as follows:
a = SANE_SENSE (collect more than 18 bytes
- of sense data);
+ of sense data, not on uas);
b = BAD_SENSE (don't collect more than 18
- bytes of sense data);
+ bytes of sense data, not on uas);
c = FIX_CAPACITY (decrease the reported
device capacity by one sector);
d = NO_READ_DISC_INFO (don't use
- READ_DISC_INFO command);
+ READ_DISC_INFO command, not on uas);
e = NO_READ_CAPACITY_16 (don't use
READ_CAPACITY_16 command);
f = NO_REPORT_OPCODES (don't use report opcodes
@@ -5122,17 +5122,18 @@
j = NO_REPORT_LUNS (don't use report luns
command, uas only);
l = NOT_LOCKABLE (don't try to lock and
- unlock ejectable media);
+ unlock ejectable media, not on uas);
m = MAX_SECTORS_64 (don't transfer more
- than 64 sectors = 32 KB at a time);
+ than 64 sectors = 32 KB at a time,
+ not on uas);
n = INITIAL_READ10 (force a retry of the
- initial READ(10) command);
+ initial READ(10) command, not on uas);
o = CAPACITY_OK (accept the capacity
- reported by the device);
+ reported by the device, not on uas);
p = WRITE_CACHE (the device cache is ON
- by default);
+ by default, not on uas);
r = IGNORE_RESIDUE (the device reports
- bogus residue values);
+ bogus residue values, not on uas);
s = SINGLE_LUN (the device has only one
Logical Unit);
t = NO_ATA_1X (don't allow ATA(12) and ATA(16)
@@ -5141,7 +5142,8 @@
w = NO_WP_DETECT (don't test whether the
medium is write-protected).
y = ALWAYS_SYNC (issue a SYNCHRONIZE_CACHE
- even if the device claims no cache)
+ even if the device claims no cache,
+ not on uas)
Example: quirks=0419:aaf5:rl,0421:0433:rc
user_debug= [KNL,ARM]