Trying to implement support for MS-TPD
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Trying to implement support for MS-TPD
by Simon Walter-7
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Hi,
The MS-TPD is a combined temperature/airflow 1-wire sensor from ibuttonlink based on a DS2438 chip and a Omron D6F sensor. http://www.ibuttonlink.com/mstpd.aspx The airflow value can be computed from the VAD voltage value with linear approximation from the D6F specs <http://www.ibuttonlink.com/pdf/omronsensor.pdf> While I can post-process the VAD value, I'm trying to add support for it into the ow_2438 owlib module (cf. attached patch). I'd like to add the following file hierarchy : /26.XXXXXXXXXXXX/D6F/ /26.XXXXXXXXXXXX/D6F/airflow Unfortunately, when I mount my 1-wire system, connected through a link-USB device, the D6F directory is present, but it is empty. Trying to read the D6F/airflow file, I got a "No such file or directory" error and the attached logs. As I'm new to fuse development, odds are that I'm missing something pretty obvious, but I can't figure out what it is. Tested on Debian (sqeeze and lenny), with owfs 2.8p13 and 2.8p14. I would appreciate any hint you might suggest. Simon. [w_2438.d6f.diff] --- ow_2438.c 2011-07-15 20:56:54.000000000 +0200 +++ ow_2438.d6f.c 2012-01-09 14:34:18.000000000 +0100 @@ -55,6 +55,7 @@ READ_FUNCTION(FS_Humid_1735); READ_FUNCTION(FS_Humid_3600); READ_FUNCTION(FS_Humid_4000); +READ_FUNCTION(FS_Air_Flow); READ_FUNCTION(FS_Humid_datanab); WRITE_FUNCTION(FS_reset_datanab); READ_FUNCTION(FS_Current); @@ -166,6 +167,9 @@ {"S3-R1-A/current", PROPERTY_LENGTH_FLOAT, NON_AGGREGATE, ft_float, fc_volatile, FS_S3R1A_current, NO_WRITE_FUNCTION, VISIBLE, NO_FILETYPE_DATA,}, {"S3-R1-A/illuminance", PROPERTY_LENGTH_FLOAT, NON_AGGREGATE, ft_float, fc_volatile, FS_S3R1A_illuminance, NO_WRITE_FUNCTION, VISIBLE, NO_FILETYPE_DATA,}, {"S3-R1-A/gain", PROPERTY_LENGTH_PRESSURE, NON_AGGREGATE, ft_float, fc_stable, FS_r_S3R1A_gain, FS_w_S3R1A_gain, VISIBLE, NO_FILETYPE_DATA,}, + + {"D6F",PROPERTY_LENGTH_SUBDIR, NON_AGGREGATE, ft_subdir, fc_subdir, NO_READ_FUNCTION, NO_WRITE_FUNCTION, VISIBLE, NO_FILETYPE_DATA,}, + {"DF6/airflow",PROPERTY_LENGTH_FLOAT, NON_AGGREGATE, ft_float, fc_volatile, FS_Air_Flow, NO_WRITE_FUNCTION, VISIBLE, NO_FILETYPE_DATA,}, }; DeviceEntryExtended(26, DS2438, DEV_temp | DEV_volt, NO_GENERIC_READ, NO_GENERIC_WRITE); @@ -354,6 +358,51 @@ return 0; } +/* D6F flow sensor (MS-TPD) +*/ +static ZERO_OR_ERROR FS_Air_Flow (struct one_wire_query *owq) +{ + _FLOAT T, VAD, VDD; + _FLOAT airflow; + + if ( + FS_r_sibling_F( &VAD, "VAD", owq ) != 0 + || FS_r_sibling_F( &VDD, "VDD", owq ) != 0 + ) { + return -EINVAL ; + } + if ( VDD < .01 ) { + LEVEL_DEBUG("Low measured VDD %g",VDD); + return -EINVAL ; + } + + + if ( VAD < .45 ) { + LEVEL_DEBUG("Measured VAD %g out of bounds",VAD); + return -EINVAL ; + } + if (( VAD >= .45 ) && ( VAD < 1.60 )) { + airflow = 0 + (VAD - 0.5)*(0.25-0)/(1.60-0.5); + } + if (( VAD >= 1.60 ) && ( VAD < 2.10 )){ + airflow = 0.25 + (VAD - 1.60)*(0.50-0.25)/(2.10-1.60); + } + if (( VAD >= 2.10 ) && ( VAD <= 2.31 )) { + airflow = 0.5 + (VAD - 2.10)*(0.75-0.5)/(2.31-2.10); + } + if (( VAD >= 2.31 ) && ( VAD <= 2.50 )) { + airflow = 0.75 + (VAD -2.31 )*(1.0-0.25)/(2.5-2.31); + } + if ( VAD > 2.50 ) { + LEVEL_DEBUG("Measured VAD %g out of bounds",VAD); + return -EINVAL ; + } + + OWQ_F(owq) = airflow; + return 0; +} + + /* The HIH-4010 and HIH-4020 are newer versions of the HIH-4000 */ /* Used in the Hobbyboards humidity product */ /* Formula from Honeywell datasheet (2007) sudo ~/usr/local/bin/owfs --link=/dev/ttyUSB0 --debug -m ~/mnt/owfs/ CONNECT: owfs.c:(100) fuse mount point: /home/simon/mnt/owfs/ CALL: ow_parsename.c:(95) path=[] DEBUG: owlib.c:(79) Globals temp limits 0C 100C (for simulated adapters) DEBUG: ow_link.c:(233) Slurp in initial bytes DEBUG: ow_link.c:(294) Checking LINK version DEBUG: ow_tcp_read.c:(64) attempt 1 bytes Time: 5.000000 seconds DEBUG: ow_tcp_read.c:(114) read: 1 - 0 = 1 DEBUG: ow_tcp_read.c:(64) attempt 1 bytes Time: 5.000000 seconds DEBUG: ow_tcp_read.c:(114) read: 1 - 0 = 1 DEBUG: ow_tcp_read.c:(64) attempt 1 bytes Time: 5.000000 seconds DEBUG: ow_tcp_read.c:(114) read: 1 - 0 = 1 DEBUG: ow_tcp_read.c:(64) attempt 1 bytes Time: 5.000000 seconds DEBUG: ow_tcp_read.c:(114) read: 1 - 0 = 1 DEBUG: ow_tcp_read.c:(64) attempt 1 bytes Time: 5.000000 seconds DEBUG: ow_tcp_read.c:(114) read: 1 - 0 = 1 DEBUG: ow_tcp_read.c:(64) attempt 1 bytes Time: 5.000000 seconds DEBUG: ow_tcp_read.c:(114) read: 1 - 0 = 1 DEBUG: ow_tcp_read.c:(64) attempt 1 bytes Time: 5.000000 seconds DEBUG: ow_tcp_read.c:(114) read: 1 - 0 = 1 DEBUG: ow_tcp_read.c:(64) attempt 1 bytes Time: 5.000000 seconds DEBUG: ow_tcp_read.c:(114) read: 1 - 0 = 1 DEBUG: ow_tcp_read.c:(64) attempt 1 bytes Time: 5.000000 seconds DEBUG: ow_tcp_read.c:(114) read: 1 - 0 = 1 DEBUG: ow_tcp_read.c:(64) attempt 1 bytes Time: 5.000000 seconds DEBUG: ow_tcp_read.c:(114) read: 1 - 0 = 1 DEBUG: ow_tcp_read.c:(64) attempt 1 bytes Time: 5.000000 seconds DEBUG: ow_tcp_read.c:(114) read: 1 - 0 = 1 DEBUG: ow_tcp_read.c:(64) attempt 1 bytes Time: 5.000000 seconds DEBUG: ow_tcp_read.c:(114) read: 1 - 0 = 1 DEBUG: ow_tcp_read.c:(64) attempt 1 bytes Time: 5.000000 seconds DEBUG: ow_tcp_read.c:(114) read: 1 - 0 = 1 DEBUG: ow_tcp_read.c:(64) attempt 1 bytes Time: 5.000000 seconds DEBUG: ow_tcp_read.c:(114) read: 1 - 0 = 1 DEBUG: ow_link.c:(152) Link version is unrecognized: LinkUSB V1.5 (but that's ok). DEBUG: fuse_line.c:(82) Added FUSE option 0 OWFS DEBUG: fuse_line.c:(82) Added FUSE option 1 /home/simon/mnt/owfs/ DEBUG: fuse_line.c:(82) Added FUSE option 2 -o DEBUG: fuse_line.c:(82) Added FUSE option 3 direct_io DEBUG: fuse_line.c:(82) Added FUSE option 4 -f DEBUG: fuse_line.c:(82) Added FUSE option 5 -d DEBUG: owfs.c:(125) fuse_mnt_opt=[(null)] DEBUG: owfs.c:(127) fuse_open_opt=[(null)] FUSE library version: 2.8.4 nullpath_ok: 0 unique: 1, opcode: INIT (26), nodeid: 0, insize: 56 INIT: 7.15 flags=0x0000007b max_readahead=0x00020000 INIT: 7.12 flags=0x00000011 max_readahead=0x00020000 max_write=0x00020000 unique: 1, success, outsize: 40 unique: 2, opcode: GETATTR (3), nodeid: 1, insize: 56 getattr / CALL: ow_fstat.c:(22) path=/ CALL: ow_parsename.c:(95) path=[/] CALL: ow_fstat.c:(39) ATTRIBUTES path=/ DEBUG: ow_parsename.c:(59) / unique: 2, success, outsize: 120 unique: 3, opcode: OPENDIR (27), nodeid: 1, insize: 48 unique: 3, success, outsize: 32 unique: 4, opcode: READDIR (28), nodeid: 1, insize: 80 getdir[0] CALL: ow_parsename.c:(95) path=[/] CALL: owfs_callback.c:(177) GETDIR path=/ DEBUG: ow_dir.c:(63) path=/ CALL: ow_dir.c:(98) path=/ DEBUG: ow_cache.c:(868) Looking for directory 00 00 00 00 00 00 00 00 DEBUG: ow_cache.c:(881) Get from cache sn 00 00 00 00 00 00 00 00 pointer=0x7fd4a8a38fec extension=0 DEBUG: ow_cache.c:(910) Dir not found in cache DEBUG: ow_search.c:(32) Start of directory path=/ device=00 00 00 00 00 00 00 00 DEBUG: ow_link.c:(514) Test to see if LINK supports the tF0 command DEBUG: ow_tcp_read.c:(64) attempt 4 bytes Time: 5.000000 seconds DEBUG: ow_tcp_read.c:(114) read: 4 - 0 = 4 DEBUG: ow_tcp_read.c:(64) attempt 5 bytes Time: 5.000000 seconds DEBUG: ow_tcp_read.c:(114) read: 5 - 0 = 5 DEBUG: ow_link.c:(562) LINK set for normal search DEBUG: ow_tcp_read.c:(64) attempt 3 bytes Time: 5.000000 seconds DEBUG: ow_tcp_read.c:(114) read: 3 - 0 = 3 DEBUG: ow_tcp_read.c:(64) attempt 17 bytes Time: 5.000000 seconds DEBUG: ow_tcp_read.c:(114) read: 17 - 0 = 17 DEBUG: ow_link.c:(648) SN found: 26 24 55 23 01 00 00 1F DEBUG: ow_tcp_read.c:(64) attempt 20 bytes Time: 5.000000 seconds DEBUG: ow_tcp_read.c:(114) read: 20 - 0 = 20 DEBUG: ow_link.c:(648) SN found: 01 65 BC 73 14 00 00 8F DEBUG: ow_link.c:(471) Index 0 DEBUG: ow_link.c:(475) SN found: 26 24 55 23 01 00 00 1F DEBUG: ow_search.c:(74) Device found: 26 24 55 23 01 00 00 1F DEBUG: ow_cache.c:(561) Adding device location 26 24 55 23 01 00 00 1F bus=0 DEBUG: ow_cache.c:(650) Add to cache sn 26 24 55 23 01 00 00 1F pointer=0x7fd4a8a38fdc index=0 size=4 DEBUG: ow_cache.c:(561) Adding device location 26 24 55 23 01 00 00 1F bus=0 DEBUG: ow_cache.c:(650) Add to cache sn 26 24 55 23 01 00 00 1F pointer=0x7fd4a8a38fdc index=0 size=4 CALL: ow_parsename.c:(95) path=[/26.245523010000] DEBUG: ow_cache.c:(927) Looking for device 26 24 55 23 01 00 00 1F DEBUG: ow_cache.c:(1083) Search in cache sn 26 24 55 23 01 00 00 1F pointer=0x7fd4a8a38fdc index=0 size=4 DEBUG: ow_cache.c:(1099) Value found in cache. Remaining life: 120 seconds. DEBUG: ow_presence.c:(76) Found device on bus 0 DEBUG: ow_parsename.c:(59) /26.245523010000 DEBUG: ow_link.c:(471) Index 1 DEBUG: ow_link.c:(475) SN found: 01 65 BC 73 14 00 00 8F DEBUG: ow_search.c:(74) Device found: 01 65 BC 73 14 00 00 8F DEBUG: ow_cache.c:(561) Adding device location 01 65 BC 73 14 00 00 8F bus=0 DEBUG: ow_cache.c:(650) Add to cache sn 01 65 BC 73 14 00 00 8F pointer=0x7fd4a8a38fdc index=0 size=4 DEBUG: ow_cache.c:(561) Adding device location 01 65 BC 73 14 00 00 8F bus=0 DEBUG: ow_cache.c:(650) Add to cache sn 01 65 BC 73 14 00 00 8F pointer=0x7fd4a8a38fdc index=0 size=4 CALL: ow_parsename.c:(95) path=[/01.65BC73140000] DEBUG: ow_cache.c:(927) Looking for device 01 65 BC 73 14 00 00 8F DEBUG: ow_cache.c:(1083) Search in cache sn 01 65 BC 73 14 00 00 8F pointer=0x7fd4a8a38fdc index=0 size=4 DEBUG: ow_cache.c:(1099) Value found in cache. Remaining life: 120 seconds. DEBUG: ow_presence.c:(76) Found device on bus 0 DEBUG: ow_parsename.c:(59) /01.65BC73140000 DEBUG: ow_link.c:(471) Index 2 DEBUG: ow_link.c:(480) SN finished DEBUG: ow_cache.c:(484) Adding directory for 00 00 00 00 00 00 00 00 elements=2 DEBUG: ow_cache.c:(650) Add to cache sn 00 00 00 00 00 00 00 00 pointer=0x7fd4a8a38fec index=0 size=16 CALL: ow_parsename.c:(95) path=[/bus.0] DEBUG: ow_parsename.c:(59) /bus.0 CALL: ow_parsename.c:(95) path=[/uncached] DEBUG: ow_parsename.c:(59) /uncached CALL: ow_parsename.c:(95) path=[/settings] DEBUG: ow_parsename.c:(59) /settings CALL: ow_parsename.c:(95) path=[/system] DEBUG: ow_parsename.c:(59) /system CALL: ow_parsename.c:(95) path=[/statistics] DEBUG: ow_parsename.c:(59) /statistics CALL: ow_parsename.c:(95) path=[/structure] DEBUG: ow_parsename.c:(59) /structure CALL: ow_parsename.c:(95) path=[/simultaneous] DEBUG: ow_parsename.c:(374) TEST set simultaneous DEBUG: ow_parsename.c:(59) /simultaneous DEBUG: ow_dir.c:(193) ret=0 DEBUG: ow_parsename.c:(59) / unique: 4, success, outsize: 408 unique: 5, opcode: READDIR (28), nodeid: 1, insize: 80 unique: 5, success, outsize: 16 unique: 6, opcode: RELEASEDIR (29), nodeid: 1, insize: 64 unique: 6, success, outsize: 16 unique: 7, opcode: LOOKUP (1), nodeid: 1, insize: 56 LOOKUP /26.245523010000 getattr /26.245523010000 CALL: ow_fstat.c:(22) path=/26.245523010000 CALL: ow_parsename.c:(95) path=[/26.245523010000] DEBUG: ow_cache.c:(927) Looking for device 26 24 55 23 01 00 00 1F DEBUG: ow_cache.c:(1083) Search in cache sn 26 24 55 23 01 00 00 1F pointer=0x7fd4a8a38fdc index=0 size=4 DEBUG: ow_cache.c:(1099) Value found in cache. Remaining life: 113 seconds. DEBUG: ow_presence.c:(76) Found device on bus 0 CALL: ow_fstat.c:(39) ATTRIBUTES path=/26.245523010000 DEBUG: ow_parsename.c:(59) /26.245523010000 NODEID: 2 unique: 7, success, outsize: 144 unique: 8, opcode: LOOKUP (1), nodeid: 2, insize: 44 LOOKUP /26.245523010000/D6F getattr /26.245523010000/D6F CALL: ow_fstat.c:(22) path=/26.245523010000/D6F CALL: ow_parsename.c:(95) path=[/26.245523010000/D6F] DEBUG: ow_cache.c:(927) Looking for device 26 24 55 23 01 00 00 1F DEBUG: ow_cache.c:(1083) Search in cache sn 26 24 55 23 01 00 00 1F pointer=0x7fd4a8a38fdc index=0 size=4 DEBUG: ow_cache.c:(1099) Value found in cache. Remaining life: 113 seconds. DEBUG: ow_presence.c:(76) Found device on bus 0 CALL: ow_fstat.c:(39) ATTRIBUTES path=/26.245523010000/D6F DEBUG: ow_parsename.c:(59) /26.245523010000/D6F NODEID: 3 unique: 8, success, outsize: 144 unique: 9, opcode: OPENDIR (27), nodeid: 3, insize: 48 unique: 9, success, outsize: 32 unique: 10, opcode: READDIR (28), nodeid: 3, insize: 80 getdir[0] CALL: ow_parsename.c:(95) path=[/26.245523010000/D6F] DEBUG: ow_cache.c:(927) Looking for device 26 24 55 23 01 00 00 1F DEBUG: ow_cache.c:(1083) Search in cache sn 26 24 55 23 01 00 00 1F pointer=0x7fd4a8a38fdc index=0 size=4 DEBUG: ow_cache.c:(1099) Value found in cache. Remaining life: 113 seconds. DEBUG: ow_presence.c:(76) Found device on bus 0 CALL: owfs_callback.c:(177) GETDIR path=/26.245523010000/D6F DEBUG: ow_dir.c:(63) path=/26.245523010000/D6F CALL: ow_dir.c:(98) path=/26.245523010000/D6F DEBUG: ow_dir.c:(193) ret=0 DEBUG: ow_parsename.c:(59) /26.245523010000/D6F unique: 10, success, outsize: 80 unique: 11, opcode: READDIR (28), nodeid: 3, insize: 80 unique: 11, success, outsize: 16 unique: 12, opcode: RELEASEDIR (29), nodeid: 3, insize: 64 unique: 12, success, outsize: 16 unique: 13, opcode: LOOKUP (1), nodeid: 1, insize: 56 LOOKUP /26.245523010000 getattr /26.245523010000 CALL: ow_fstat.c:(22) path=/26.245523010000 CALL: ow_parsename.c:(95) path=[/26.245523010000] DEBUG: ow_cache.c:(927) Looking for device 26 24 55 23 01 00 00 1F DEBUG: ow_cache.c:(1083) Search in cache sn 26 24 55 23 01 00 00 1F pointer=0x7fd4a8a38fdc index=0 size=4 DEBUG: ow_cache.c:(1099) Value found in cache. Remaining life: 106 seconds. DEBUG: ow_presence.c:(76) Found device on bus 0 CALL: ow_fstat.c:(39) ATTRIBUTES path=/26.245523010000 DEBUG: ow_parsename.c:(59) /26.245523010000 NODEID: 2 unique: 13, success, outsize: 144 unique: 14, opcode: LOOKUP (1), nodeid: 2, insize: 44 LOOKUP /26.245523010000/D6F getattr /26.245523010000/D6F CALL: ow_fstat.c:(22) path=/26.245523010000/D6F CALL: ow_parsename.c:(95) path=[/26.245523010000/D6F] DEBUG: ow_cache.c:(927) Looking for device 26 24 55 23 01 00 00 1F DEBUG: ow_cache.c:(1083) Search in cache sn 26 24 55 23 01 00 00 1F pointer=0x7fd4a8a38fdc index=0 size=4 DEBUG: ow_cache.c:(1099) Value found in cache. Remaining life: 106 seconds. DEBUG: ow_presence.c:(76) Found device on bus 0 CALL: ow_fstat.c:(39) ATTRIBUTES path=/26.245523010000/D6F DEBUG: ow_parsename.c:(59) /26.245523010000/D6F NODEID: 3 unique: 14, success, outsize: 144 unique: 15, opcode: LOOKUP (1), nodeid: 3, insize: 48 LOOKUP /26.245523010000/D6F/airflow getattr /26.245523010000/D6F/airflow CALL: ow_fstat.c:(22) path=/26.245523010000/D6F/airflow CALL: ow_parsename.c:(95) path=[/26.245523010000/D6F/airflow] DEBUG: ow_cache.c:(927) Looking for device 26 24 55 23 01 00 00 1F DEBUG: ow_cache.c:(1083) Search in cache sn 26 24 55 23 01 00 00 1F pointer=0x7fd4a8a38fdc index=0 size=4 DEBUG: ow_cache.c:(1099) Value found in cache. Remaining life: 106 seconds. DEBUG: ow_presence.c:(76) Found device on bus 0 DEBUG: ow_parsename.c:(646) Unknown property for this device D6F/airflow DEBUG: ow_parsename.c:(152) Set error to 27 <Path - bad path syntax> DEBUG: ow_parsename.c:(59) /26.245523010000/D6F/airflow DEBUG: ow_parsename.c:(59) /26.245523010000/D6F/airflow unique: 15, error: -2 (No such file or directory), outsize: 16 ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Owfs-developers mailing list Owfs-developers@... https://lists.sourceforge.net/lists/listinfo/owfs-developers |
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Re: Trying to implement support for MS-TPD
by Paul Alfille-2
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Nice code. A small typo, though:
+ {"D6F",PROPERTY_LENGTH_SUBDIR, NON_AGGREGATE, ft_subdir, fc_subdir, NO_READ_FUNCTION, NO_WRITE_FUNCTION, VISIBLE, NO_FILETYPE_DATA,}, + {"DF6/airflow",PROPERTY_LENGTH_FLOAT, NON_AGGREGATE, ft_float, fc_volatile, FS_Air_Flow, NO_WRITE_FUNCTION, VISIBLE, NO_FILETYPE_DATA,}, D6F vs DF6 On Tue, Jan 17, 2012 at 9:02 AM, Simon Walter <simon.walter@...> wrote: Hi, ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Owfs-developers mailing list Owfs-developers@... https://lists.sourceforge.net/lists/listinfo/owfs-developers |
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Re: Trying to implement support for MS-TPD
by Paul Alfille-2
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It will be great to include D6F support!
My recollection is that the iButtonLink "Multisensors" had an ID sequence stored in memory. If you can find that, we may be able to make display of the airflow sensor contingent on that ID -- so it only shows for the real D6F.
Paul
On Thu, Jan 19, 2012 at 8:26 AM, Simon Walter <simon.walter@...> wrote:
------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Owfs-developers mailing list Owfs-developers@... https://lists.sourceforge.net/lists/listinfo/owfs-developers |
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