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QuestionHow to retrieve "terminal" output? Pin
Vaclav_17-May-19 7:26
MemberVaclav_17-May-19 7:26 
I have pretty much given up on using bluez hci functions.
Instead I am looking at bluetoothctl and hcitools.
At this point I can visually identify both local and "nearby" bluetooth devices using "system" calls in my C++ code.
I am not sure how to use these scripts for actual transfer of data.

For now I like to retrieve the received text for further processing - using redirection . See bellow example when using terminal. My C++ code provides similar output to console.

I understand that some command require "sudo" (user) but do not understand why the redirection is failing.
Perhaps I need to provide detailed path to the "test" file ?

Appreciate any help.


<pre>pi@pi:/ $ sudo hcitool scan --info  --class 
Scanning ...

BD Address:	00:50:B6:80:4D:5D [mode 1, clkoffset 0x4dae]
Device class:	Computer, Desktop workstation (0x000104)
Manufacturer:	Broadcom Corporation (15)
LMP version:	2.0 (0x3) [subver 0x430e]
LMP features:	0xff 0xff 0x8d 0xfe 0x9b 0xf9 0x00 0x80
		<3-slot packets> <5-slot packets> <encryption> <slot offset> 
		<timing accuracy> <role switch> <hold mode> <sniff mode> 
		<park state> <RSSI> <channel quality> <SCO link> <HV2 packets> 
		<HV3 packets> <u-law log> <A-law log> <CVSD> <power control> 
		<transparent SCO> <broadcast encrypt> <EDR ACL 2 Mbps> 
		<EDR ACL 3 Mbps> <enhanced iscan> <interlaced iscan> 
		<interlaced pscan> <inquiry with RSSI> <extended SCO> 
		<EV4 packets> <EV5 packets> <AFH cap. slave> 
		<AFH class. slave> <3-slot EDR ACL> <5-slot EDR ACL> 
		<AFH cap. master> <AFH class. master> <EDR eSCO 2 Mbps> 
		<EDR eSCO 3 Mbps> <3-slot EDR eSCO> <extended features> 

pi@pi:/ $ sudo hcitool scan --info  --class 2>test.txt
-bash: test.txt: Permission denied


AnswerRe: How to retrieve "terminal" output? Pin
Richard MacCutchan17-May-19 9:27
mveRichard MacCutchan17-May-19 9:27 
QuestionTheoretical server/site setup Pin
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QuestionSOLVED "configure" script option PKG_CONFIG_DEBUG_SPEW fails to run on X86 Pin
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Questionmissing mount.pc Pin
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QuestionBad UDP length 736 > IP payload length Len = 728 packet drop Pin
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