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author | Oliver Neukum <oneukum@suse.com> | 2019-11-14 12:27:58 +0100 |
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committer | Ben Hutchings <ben@decadent.org.uk> | 2020-02-11 20:03:42 +0000 |
commit | 3c4af5633b6772ff51de77dd7343418b7ab109f0 (patch) | |
tree | 4e233aa1f1a9e4f38e3b676b4aee4930b163fa9e /Documentation | |
parent | 6cd822acecf0cd336c2d32efe88e776aae975582 (diff) | |
download | linux-stable-3c4af5633b6772ff51de77dd7343418b7ab109f0.tar.gz linux-stable-3c4af5633b6772ff51de77dd7343418b7ab109f0.tar.bz2 linux-stable-3c4af5633b6772ff51de77dd7343418b7ab109f0.zip |
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>
Link: https://lore.kernel.org/r/20191114112758.32747-4-oneukum@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[bwh: Backported to 3.16: Drop change relating to ALWAYS_SYNC]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/kernel-parameters.txt | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 8ab2913d8393..01eb7cab0419 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -3730,13 +3730,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted. 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 @@ -3751,17 +3751,18 @@ bytes respectively. Such letter suffixes can also be entirely omitted. 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) |