[PATCH] Fix Config help text for hdparm -d option

Tito farmatito at tiscali.it
Wed Mar 25 18:46:40 UTC 2009


Hi,
this is a trivial patch that fixes the Config.in help text
for the hdparm -d (FEATURE_HDPARM_HDIO_GETSET_DMA)
option. The patch removes the DANGEROUS remark
as it scares users and is not coherent with the original
hdparm help text.

hdparm - get/set hard disk parameters - version v8.9

Usage:  hdparm  [options] [device] ..

Options:
 -a   get/set fs readahead
 -A   get/set the drive look-ahead flag (0/1)
 -b   get/set bus state (0 == off, 1 == on, 2 == tristate)
 -B   set Advanced Power Management setting (1-255)
 -c   get/set IDE 32-bit IO setting
 -C   check drive power mode status
 -d   get/set using_dma flag
 -D   enable/disable drive defect management
 -E   set cd-rom drive speed
 -f   flush buffer cache for device on exit
 -F   flush drive write cache
 -g   display drive geometry
 -h   display terse usage information
 -H   read temperature from drive (Hitachi only)
 -i   display drive identification
 -I   detailed/current information directly from drive
 -k   get/set keep_settings_over_reset flag (0/1)
 -K   set drive keep_features_over_reset flag (0/1)
 -L   set drive doorlock (0/1) (removable harddisks only)
 -M   get/set acoustic management (0-254, 128: quiet, 254: fast)
 -m   get/set multiple sector count
 -N   get/set max visible number of sectors (HPA) (VERY DANGEROUS)
 -n   get/set ignore-write-errors flag (0/1)
 -p   set PIO mode on IDE interface chipset (0,1,2,3,4,...)
 -P   set drive prefetch count
 -q   change next setting quietly
 -Q   get/set DMA queue_depth (if supported)
 -r   get/set device  readonly flag (DANGEROUS to set)
 -R   obsolete
 -s   set power-up in standby flag (0/1) (DANGEROUS)
 -S   set standby (spindown) timeout
 -t   perform device read timings
 -T   perform cache read timings
 -u   get/set unmaskirq flag (0/1)
 -U   obsolete
 -v   defaults; same as -acdgkmur for IDE drives
 -V   display program version and exit immediately
 -w   perform device reset (DANGEROUS)
 -W   get/set drive write-caching flag (0/1)
 -x   obsolete
 -X   set IDE xfer mode (DANGEROUS)
 -y   put drive in standby mode
 -Y   put drive to sleep
 -Z   disable Seagate auto-powersaving mode
 -z   re-read partition table
 --direct          use O_DIRECT to bypass page cache for timings
 --drq-hsm-error   crash system with a "stuck DRQ" error (VERY DANGEROUS)
 --fibmap          show device extents (and fragmentation) for a file
 --fibmap-sector   show absolute LBA of a specfic sector of a file
 --Istdin          read identify data from stdin as ASCII hex
 --Istdout         write identify data to stdout as ASCII hex
 --make-bad-sector deliberately corrupt a sector directly on the media (VERY DANGEROUS)
 --read-sector     read and dump (in hex) a sector directly from the media
 --security-help   display help for ATA security commands
 --verbose         display extra diagnostics from some commands
 --write-sector    repair/overwrite a (possibly bad) sector directly on the media (VERY DANGEROUS)

Please apply if you like it.
Untested but trivial with no code changes.

Ciao,
Tito
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