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| author | Oliver Neukum <oneukum@suse.com> | 2019-11-14 12:27:58 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-18 12:41:56 +0100 |
| commit | 65cc8bf99349f651a0a2cee69333525fe581f306 (patch) | |
| tree | c6550cd7e9fba398050bcc535fd4611d4afbad7f /Documentation/admin-guide/kernel-parameters.txt | |
| parent | 335cbbd5762d5e5c67a8ddd6e6362c2aa42a328f (diff) | |
| download | lwn-65cc8bf99349f651a0a2cee69333525fe581f306.tar.gz lwn-65cc8bf99349f651a0a2cee69333525fe581f306.zip | |
USB: documentation: flags on usb-storage versus UAS
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/kernel-parameters.txt')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index a84a83f8881e..a02b1799a756 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -4998,13 +4998,13 @@ 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 @@ -5019,17 +5019,18 @@ 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) @@ -5038,7 +5039,8 @@ 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] |