How to build a simple LED RESTful service in Raspberry PI?
Hi guys, I would like to seek advise or help on how to build a simple LED RESTful service in Raspberry PI. I need to be able to get my LED to light up or off whenever I type localhost:3000/GET/1/1 or something. New to it and hope you guys could help me out with it as soon as possible, thanks in advance, guys.
i have been given a raspberry Pi with some applications i am told run in Unix. I do not know much (close to nothing about Unix) that's why I'm here.
I need someone to remote view (team viewer) into my machine and try and show me how to get this application running.
If there is success there... (1 Reply)
The small red box to the left of TV is the Raspberry PI. Successfully installed and running Raspbian Wheezy.
I learnt about Raspberry PI from Neo here on unix.com. Thanks to you Neo :b: (6 Replies)
Hi,
So I downloaded this kernel source and was able to build it successfully.
But I want to add this SDK source code inside, can anyone help me how to do this? Note that the SDK source can be built by itself.
I added the SDK in the main Makefile:
init-y := init/
#added SDK... (0 Replies)
Anyone order or get the new Rasberry Pi? I'm still waiting. Even though it's a fun project, I think these will turn out to be toys for people who already have PC's, and a boon to those who do not.
But that is not stopping me. If my wallet holds out, maybe I can build a Raspberry Pi beowulf... (1 Reply)
Hello,
I need to make a function call to a RESTful web service. I tried using curl command but it throws an error 'Mathod not allowed'
curl --request POST <link>
Could someone confirm if Unix can call a RESTful web service and share some examples around the Syntax
Thanks in Advance :b:... (2 Replies)
XkbAddDeviceLedInfo(3) XKB FUNCTIONS XkbAddDeviceLedInfo(3)NAME
XkbAddDeviceLedInfo - Initialize an XkbDeviceLedInfoRec structure
SYNOPSIS
XkbDeviceLedInfoPtr XkbAddDeviceLedInfo (XkbDeviceInfoPtr device_info, unsigned int led_class, unsigned int led_id);
ARGUMENTS
- device_info
structure in which to add LED info
- led_class
input extension class for LED device of interest
- led_id
input extension ID for LED device of interest
DESCRIPTION
XkbAddDeviceLedInfo first checks to see whether an entry matching led_class and led_id already exists in the device_info->leds array. If it
finds a matching entry, it returns a pointer to that entry. Otherwise, it checks to be sure there is at least one empty entry in
device_info->leds and extends it if there is not enough room. It then increments device_info->num_leds and fills in the next available
entry in device_info->leds with led_class and led_id.
If successful, XkbAddDeviceLedInfo returns a pointer to the XkbDeviceLedInfoRec structure that was initialized. If unable to allocate suf-
ficient storage, or if device_info points to an invalid XkbDeviceInfoRec structure, or if led_class or led_id are inappropriate, XkbAddDe-
viceLedInfo returns NULL.
To allocate additional space for button actions in an XkbDeviceInfoRec structure, use XkbResizeDeviceButtonActions.
STRUCTURES
Information about X Input Extension devices is transferred between a client program and the Xkb extension in an XkbDeviceInfoRec structure:
typedef struct {
char * name; /* name for device */
Atom type; /* name for class of devices */
unsigned short device_spec; /* device of interest */
Bool has_own_state; /* True=>this device has its own state */
unsigned short supported; /* bits indicating supported capabilities */
unsigned short unsupported; /* bits indicating unsupported capabilities */
unsigned short num_btns; /* number of entries in btn_acts */
XkbAction * btn_acts; /* button actions */
unsigned short sz_leds; /* total number of entries in LEDs vector */
unsigned short num_leds; /* number of valid entries in LEDs vector */
unsigned short dflt_kbd_fb; /* input extension ID of default (core kbd) indicator */
unsigned short dflt_led_fb; /* input extension ID of default indicator feedback */
XkbDeviceLedInfoPtr leds; /* LED descriptions */
} XkbDeviceInfoRec, *XkbDeviceInfoPtr;
typedef struct {
unsigned short led_class; /* class for this LED device*/
unsigned short led_id; /* ID for this LED device */
unsigned int phys_indicators; /* bits for which LEDs physically present */
unsigned int maps_present; /* bits for which LEDs have maps in maps */
unsigned int names_present; /* bits for which LEDs are in names */
unsigned int state; /* 1 bit => corresponding LED is on */
Atom names[XkbNumIndicators]; /* names for LEDs */
XkbIndicatorMapRec maps; /* indicator maps for each LED */
} XkbDeviceLedInfoRec, *XkbDeviceLedInfoPtr;
SEE ALSO XkbResizeDeviceButtonActions(3)X Version 11 libX11 1.3.2 XkbAddDeviceLedInfo(3)