Mini Shell
Mini Shell
| Direktori : /usr/sbin/ |
| Current File : //usr/sbin/spi |
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Invalid mode specified: %s
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%d command %s and %d data %s read from SPI device
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Error performing SPI transaction, errno=%d
- communicate on SPI bus with slave devices
Usage:
spi [-f device] [-d r|w|rw] [-m mode] [-s max-speed] [-c count]
[-C "command bytes"] [-A] [-b] [-L] [-v]
spi -i [-f device] [-v]
spi -h
where
-f specifies the device (default is spigen0.0)
-d specifies the operation (r, w, or rw; default is rw)
-m specifies the mode (0, 1, 2, or 3)
-s specifies the maximum speed (default is 0, device default)
-c specifies the number of data bytes to transfer (default 0, i.e. none)
A negative value uses the length of the input data
-C specifies 'command bytes' to be sent, as 2 byte hexadecimal values
(these should be quoted, separated by optional white space)
-L specifies 'LSB' order on the SPI bus (default is MSB)
-i query information about the device
-A uses ASCII for input/output as 2-digit hex values
-b Override output format as binary (only valid with '-A')
-v verbose output
-h prints this message
NOTE: setting the mode and/or speed is 'sticky'. Subsequent transactions
on that device will, by default, use the previously set values.
byte error - missing device name
/dev/%s Unable to query info (err=%d), errno=%d
Invalid count specified: %s
| Error - unable to open '%s', errno=%d
ASCII input of %zd %s
Binary input of %zd %s
/dev/spigen0.0 %02hhx Invalid input character '%c'
bytes %02hhx Invalid speed specified: %s
Error writing to stdout, errno=%d
f:d:m:s:c:C:AbLvih Binary output of %d %s
Device name: %s
Device mode: %d
Device speed: %d
Writing %d %s to SPI device
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