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35 silly install resolved      { name: 'Victor Porof',
35 silly install resolved        email: 'victor.porof@gmail.com',
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35 silly install resolved     readme: 'MAX7219.js\n==========\n\nJavaScript abstraction for the MAX7219 display driver controller. Please read the datasheet for this chip [here](https://www.adafruit.com/datasheets/MAX7219.pdf).\n\n## How to use\nThe "digits and segments" language isn\'t dissolved away by the API, to make your life easier when wiring the controller. Obviously, you can think of them as "cathodes and anodes" respectively when using this library. Multiplexing and persistence of vision is handled by the MAX7219, you only need to turn anodes on or off. Here\'s a quick example:\n```javascript\nvar disp = new MAX7219("/dev/spidev1.0");\ndisp.setDecodeNone();\ndisp.setScanLimit(8);\ndisp.startup();\ndisp.setDigitSegments(0, [0, 0, 1, 1, 0, 1, 1, 1]);\ndisp.setDigitSegments(1, [0, 1, 0, 0, 1, 1, 1, 1]);\ndisp.setDigitSegments(2, [0, 0, 0, 0, 1, 1, 1, 0]);\ndisp.setDigitSegments(3, [0, 1, 1, 0, 0, 1, 1, 1]);\n```\n\nAlternatively, using the BCD code font decoding is supported. Here\'s how to set it up:\n```javascript\nvar disp = new MAX7219("/dev/spidev1.0");\ndisp.setDecodeAll();\ndisp.setScanLimit(8);\ndisp.startup();\ndisp.setDigitSymbol(0, "H");\ndisp.setDigitSymbol(1, "E");\ndisp.setDigitSymbol(2, "L");\ndisp.setDigitSymbol(3, "P");\n```\n\n## Prerequisites\n\nThe `node-spi` library is required. Get it from [here](https://github.com/RussTheAerialist/node-spi), or via `npm install spi`.\n\nYou\'ll also need to make sure SPI devices are enabled (and you have a reasonably up-to-date Linux kernel). Here\'s how you can check this:\n\nEnsure that the SPI driver is enabled:\n```\n$ dmesg | grep spi\n[    3.769841] bcm2708_spi bcm2708_spi.0: master is unqueued, this is deprecated\n[    3.793364] bcm2708_spi bcm2708_spi.0: SPI Controller at 0x20204000 (irq 80)\n```\nThe devices are successfully installed in /dev:\n```shell\n$ ls -l /dev/spi*\ncrw------- 1 root root 153, 0 Jan  1  2000 /dev/spidev1.0\ncrw------- 1 root root 153, 1 Jan  1  2000 /dev/spidev2.0\n```\n\n### Enabling SPI on the BeagleBone Black\n\nThe fastest way would be to use [the BeagleBone-SPI-UART library](https://github.com/victorporof/BeagleBone-SPI-UART).\n\nAlternatively, you\'re going to have to compile some device tree overlays. It\'s pretty easy, just follow the steps described [here](http://elinux.org/BeagleBone_Black_Enable_SPIDEV).\n\n### Enabling SPI on the Raspberry PI\n\nEasy as pie! Simply `sudo nano /etc/modprobe.d/raspi-blacklist.conf` and add a `#` character in front of the line `spi-bcm2708`. Use CTRL-X, then Y, then Return to save the file and exit. Reboot.\n\n## API\n\n* Constructor __**`MAX7219(device, count, callback)`**__\n\nInitializes an instance of the controller abstraction. The `device` argument is a string specifying the SPI device on which the controller is wired. For example, `"/dev/spidev1.0"`. The optional `count` argument specifies the total number of chips when several MAX7219s are daisy-chained.\n\n* __**`setActiveController(index)`**__\n\nWhen daisy-chaining MAX7219s, specifies which chip is currently controlled. The `index` parameter is a number identifying the chip to control. By default, the chip at index 0 is controlled.\n\n* __**`getActiveController(index)`**__\n\nReturns which chip is currently controlled.\n\n* __**`startup(callback)`**__\n\nSets this controller in normal operation mode. On initial power-up, all control registers are reset, the display is blanked, and the MAX7219 enters shutdown mode. This method sets the controller back in normal operation mode.\n\n* __**`shutdown(callback)`**__\n\nSets this controller in shutdown mode. When the MAX7219 is in shutdown mode, the scan oscillator is halted, all segment current sources are pulled to ground, and the display is blanked.\n\n* __**`startDisplayTest(callback)`**__\n\nSets this controller in display-test mode. Display-test mode turns all LEDs on by overriding, but not altering, all controls and digit registers (including the shutdown register).\n\n* __**`stopDisplayTest(callback)`**__\n\nSets this controller back into the previous operation mode.\n\n* __**`setDecodeMode(modes, callback)`**__\n\nSets this controller\'s decode mode, specifying how the segments controlled\nby the MAX7219 are set on/off. When no-decode is selected, data bits correspond to the segments directly. When decode mode is selected, certain symbols (only `0`-`9`, `E`, `H`, `L`, `P`, and `-`) are encoded in a specific way. This is useful for BCD 7 segment displays. The `modes` argument is an array of decode/no-decode modes for each digit. E.g., to set decode mode for digits 0–3 and no-decode for 4–7, modes would be `[1, 1, 1, 1, 0, 0, 0, 0]`.\n\n* __**`setDecodeNone(callback)`**__\n\nShortcut for specifying that all digits are in no-decode mode.\n\n* __**`setDecodeAll(callback)`**__\n\nShortcut for specifying that all digits are in decode mode.\n\n* __**`setDigitSegments(n, segments, callback)`**__\n\nSets each segment in a digit on/off.\n*For this to work properly, the digit should be in no-decode mode.* The segments are identified as follows:\n```\n   _a_\n f|   |b\n  |_g_|\n  |   |\n e|___|c  dp (decimal point)\n    d    *\n```\nThe first parameter, `n`, is the digit number, from 0 up to and including 7. The `segments` parameter is a list specifying whether segments are on and off. E.g., to specify `dp`, `c`, `d`, `e` and `g` on, and `a`, `b`, `f` off, segments would be `[1, 0, 0, 1, 1, 1, 0, 1]`, corresponding to the structure `[dp, a, b, c, d, e, f, g]`.\n\n* __**`setDigitSegmentsByte(byte, callback)`**__\n\nSame as `setDigitSegments`, but it takes a byte instead of an array of bits.\n\n* __**`setDigitSymbol(n, symbol, callback)`**__\n\nSets the symbol displayed in a digit.\n*For this to work properly, the digit should be in decode mode.* The first parameter, `n` is the digit number, from 0 up to and including 7. The `symbol` parameter is a string specifying the symbol do display: `"0"`..`"9"`, `"E"`, `"H"`, `"L"`, `"P"`, `"-"` or `" "`. The `dp` parameter is a boolean specifying whether the decimal point should be on or off.\n\n* __**`clearDisplay(callback)`**__\n\nSets all segments for all digits off. This is a shortcut for manually calling `setDigitSegments` or `setDigitSymbol` with the appropriate params. If a decode mode wasn\'t specifically set beforehand, no-decode mode is assumed.\n\n* __**`setDisplayIntensity(brightness, callback)`**__\n\nSets digital control of display brightness. The `brightnesss` parameter may be a number from 0 (dimmest) up to and including 15 (brightest).\n\n* __**`setScanLimit(limit, callback)`**__\n\nSets how many digits are displayed, from 1 digit to 8 digits. The `limit` parameter specifies the number of digits displayed, counting from first to last. E.g., to display only the first digit, limit would be 1. Another e.g., to display only digits 0, 1 and 2, limit would be 3.\n\n#### Callbacks\n\nAll methods that have a `callback` argument will invoke that function once the write to the SPI device finishes.\n\n## EOF\n\nThanks for reading. Happy multiplexing.\n',
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140 silly cache afterAdd bindings@1.2.1
141 verbose afterAdd /home/pi/.npm/bindings/1.2.1/package/package.json not in flight; writing
142 verbose afterAdd /home/pi/.npm/bindings/1.2.1/package/package.json written
143 silly install resolved [ { name: 'bindings',
143 silly install resolved     description: 'Helper module for loading your native module\'s .node file',
143 silly install resolved     keywords: [ 'native', 'addon', 'bindings', 'gyp', 'waf', 'c', 'c++' ],
143 silly install resolved     version: '1.2.1',
143 silly install resolved     author:
143 silly install resolved      { name: 'Nathan Rajlich',
143 silly install resolved        email: 'nathan@tootallnate.net',
143 silly install resolved        url: 'http://tootallnate.net' },
143 silly install resolved     repository:
143 silly install resolved      { type: 'git',
143 silly install resolved        url: 'git://github.com/TooTallNate/node-bindings.git' },
143 silly install resolved     main: './bindings.js',
143 silly install resolved     bugs: { url: 'https://github.com/TooTallNate/node-bindings/issues' },
143 silly install resolved     homepage: 'https://github.com/TooTallNate/node-bindings',
143 silly install resolved     license: 'MIT',
143 silly install resolved     gitHead: 'e404152ee27f8478ccbc7122ee051246e8e5ec02',
143 silly install resolved     _id: 'bindings@1.2.1',
143 silly install resolved     scripts: {},
143 silly install resolved     _shasum: '14ad6113812d2d37d72e67b4cacb4bb726505f11',
143 silly install resolved     _from: 'bindings@*',
143 silly install resolved     _npmVersion: '1.4.14',
143 silly install resolved     _npmUser: { name: 'tootallnate', email: 'nathan@tootallnate.net' },
143 silly install resolved     maintainers: [ [Object], [Object] ],
143 silly install resolved     dist:
143 silly install resolved      { shasum: '14ad6113812d2d37d72e67b4cacb4bb726505f11',
143 silly install resolved        tarball: 'http://registry.npmjs.org/bindings/-/bindings-1.2.1.tgz' },
143 silly install resolved     directories: {},
143 silly install resolved     _resolved: 'https://registry.npmjs.org/bindings/-/bindings-1.2.1.tgz',
143 silly install resolved     readme: 'ERROR: No README data found!' } ]
144 info install bindings@1.2.1 into /home/pi/experiments/max7219/node_modules/max7219/node_modules/spi
145 info installOne bindings@1.2.1
146 verbose installOne of bindings to /home/pi/experiments/max7219/node_modules/max7219/node_modules/spi not in flight; installing
147 verbose lock using /home/pi/.npm/_locks/bindings-07a8e104363de4a1.lock for /home/pi/experiments/max7219/node_modules/max7219/node_modules/spi/node_modules/bindings
148 silly install write writing bindings 1.2.1 to /home/pi/experiments/max7219/node_modules/max7219/node_modules/spi/node_modules/bindings
149 verbose unbuild node_modules/max7219/node_modules/spi/node_modules/bindings
150 silly gentlyRm /home/pi/experiments/max7219/node_modules/max7219/node_modules/spi/node_modules/bindings is being purged from base /home/pi/experiments/max7219
151 verbose gentlyRm don't care about contents; nuking /home/pi/experiments/max7219/node_modules/max7219/node_modules/spi/node_modules/bindings
152 verbose tar unpack /home/pi/.npm/bindings/1.2.1/package.tgz
153 verbose tar unpacking to /home/pi/experiments/max7219/node_modules/max7219/node_modules/spi/node_modules/bindings
154 silly gentlyRm /home/pi/experiments/max7219/node_modules/max7219/node_modules/spi/node_modules/bindings is being purged
155 verbose gentlyRm don't care about contents; nuking /home/pi/experiments/max7219/node_modules/max7219/node_modules/spi/node_modules/bindings
156 silly gunzTarPerm modes [ '755', '644' ]
157 silly gunzTarPerm extractEntry package.json
158 silly gunzTarPerm extractEntry README.md
159 silly gunzTarPerm extractEntry bindings.js
160 verbose write writing to /home/pi/experiments/max7219/node_modules/max7219/node_modules/spi/node_modules/bindings/package.json
161 info preinstall bindings@1.2.1
162 verbose readDependencies loading dependencies from /home/pi/experiments/max7219/node_modules/max7219/node_modules/spi/node_modules/bindings/package.json
163 verbose readDependencies loading dependencies from /home/pi/experiments/max7219/node_modules/max7219/node_modules/spi/node_modules/bindings/package.json
164 silly install resolved []
165 verbose about to build /home/pi/experiments/max7219/node_modules/max7219/node_modules/spi/node_modules/bindings
166 info build /home/pi/experiments/max7219/node_modules/max7219/node_modules/spi/node_modules/bindings
167 info linkStuff bindings@1.2.1
168 silly linkStuff bindings@1.2.1 has /home/pi/experiments/max7219/node_modules/max7219/node_modules/spi/node_modules as its parent node_modules
169 verbose linkBins bindings@1.2.1
170 verbose linkMans bindings@1.2.1
171 verbose rebuildBundles bindings@1.2.1
172 info install bindings@1.2.1
173 info postinstall bindings@1.2.1
174 verbose unlock done using /home/pi/.npm/_locks/bindings-07a8e104363de4a1.lock for /home/pi/experiments/max7219/node_modules/max7219/node_modules/spi/node_modules/bindings
175 verbose about to build /home/pi/experiments/max7219/node_modules/max7219/node_modules/spi
176 info build /home/pi/experiments/max7219/node_modules/max7219/node_modules/spi
177 info linkStuff spi@0.1.2
178 silly linkStuff spi@0.1.2 has /home/pi/experiments/max7219/node_modules/max7219/node_modules as its parent node_modules
179 verbose linkBins spi@0.1.2
180 verbose linkMans spi@0.1.2
181 verbose rebuildBundles spi@0.1.2
182 verbose rebuildBundles [ 'bindings' ]
183 info install spi@0.1.2
184 verbose unsafe-perm in lifecycle true
185 info spi@0.1.2 Failed to exec install script
186 verbose unlock done using /home/pi/.npm/_locks/spi-b7c7c5f5d0da0984.lock for /home/pi/experiments/max7219/node_modules/max7219/node_modules/spi
187 verbose about to build /home/pi/experiments/max7219/node_modules/max7219
188 verbose unlock done using /home/pi/.npm/_locks/max7219-824157aada65d412.lock for /home/pi/experiments/max7219/node_modules/max7219
189 verbose stack Error: spi@0.1.2 install: `node-gyp rebuild`
189 verbose stack Exit status 1
189 verbose stack     at EventEmitter.<anonymous> (/usr/local/lib/node_modules/npm/lib/utils/lifecycle.js:214:16)
189 verbose stack     at emitTwo (events.js:87:13)
189 verbose stack     at EventEmitter.emit (events.js:172:7)
189 verbose stack     at ChildProcess.<anonymous> (/usr/local/lib/node_modules/npm/lib/utils/spawn.js:24:14)
189 verbose stack     at emitTwo (events.js:87:13)
189 verbose stack     at ChildProcess.emit (events.js:172:7)
189 verbose stack     at maybeClose (internal/child_process.js:818:16)
189 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:211:5)
190 verbose pkgid spi@0.1.2
191 verbose cwd /home/pi/experiments/max7219
192 error Linux 4.1.15-v7+
193 error argv "/usr/local/bin/node" "/usr/local/bin/npm" "install" "max7219"
194 error node v4.2.1
195 error npm  v2.14.7
196 error code ELIFECYCLE
197 error spi@0.1.2 install: `node-gyp rebuild`
197 error Exit status 1
198 error Failed at the spi@0.1.2 install script 'node-gyp rebuild'.
198 error This is most likely a problem with the spi package,
198 error not with npm itself.
198 error Tell the author that this fails on your system:
198 error     node-gyp rebuild
198 error You can get their info via:
198 error     npm owner ls spi
198 error There is likely additional logging output above.
199 verbose exit [ 1, true ]
200 verbose unbuild node_modules/max7219/node_modules/spi
201 info preuninstall spi@0.1.2
202 info uninstall spi@0.1.2
203 verbose unbuild rmStuff spi@0.1.2 from /home/pi/experiments/max7219/node_modules
204 verbose unbuild rmStuff in /home/pi/experiments/max7219/node_modules/max7219/node_modules
205 info postuninstall spi@0.1.2
206 silly gentlyRm /home/pi/experiments/max7219/node_modules/max7219/node_modules/spi is being purged from base /home/pi/experiments/max7219
207 verbose gentlyRm don't care about contents; nuking /home/pi/experiments/max7219/node_modules/max7219/node_modules/spi
208 silly vacuum-fs purging /home/pi/experiments/max7219/node_modules/max7219/node_modules/spi
209 silly vacuum-fs removing /home/pi/experiments/max7219/node_modules/max7219/node_modules
210 silly vacuum-fs quitting because other entries in /home/pi/experiments/max7219/node_modules/max7219
211 verbose unbuild node_modules/max7219
212 info preuninstall max7219@1.0.1
213 info uninstall max7219@1.0.1
214 verbose unbuild rmStuff max7219@1.0.1 from /home/pi/experiments/max7219/node_modules
215 info postuninstall max7219@1.0.1
216 silly gentlyRm /home/pi/experiments/max7219/node_modules/max7219 is being purged from base /home/pi/experiments/max7219
217 verbose gentlyRm don't care about contents; nuking /home/pi/experiments/max7219/node_modules/max7219
218 silly vacuum-fs purging /home/pi/experiments/max7219/node_modules/max7219
219 silly vacuum-fs removing /home/pi/experiments/max7219/node_modules
220 silly vacuum-fs finished vacuuming up to /home/pi/experiments/max7219