GUsbContext

GUsbContext — Per-thread instance integration for libusb

Functions

Properties

gint debug-level Read / Write
gpointer libusb-context Read / Write / Construct Only

Types and Values

Object Hierarchy

    GObject
    ╰── GUsbContext

Description

This object is used to get a context that is thread safe.

Functions

g_usb_context_error_quark ()

GQuark
g_usb_context_error_quark (void);

Returns

Our personal error quark.

Since 0.1.0


g_usb_context_new ()

GUsbContext *
g_usb_context_new (GError **error);

Creates a new context for accessing USB devices.

Parameters

error

a GError, or NULL

 

Returns

a new GUsbContext object or NULL on error.

Since 0.1.0


g_usb_context_get_source ()

GUsbSource *
g_usb_context_get_source (GUsbContext *context,
                          GMainContext *main_ctx);

Returns a source for this context. The first call actually creates the source and the result is returned in all future calls.

Parameters

context

a GUsbContext

 

main_ctx

a GMainContext, or NULL

 

Returns

the GUsbSource.

[transfer none]

Since 0.1.0


g_usb_context_set_debug ()

void
g_usb_context_set_debug (GUsbContext *context,
                         GLogLevelFlags flags);

Sets the debug flags which control what is logged to the console.

Using G_LOG_LEVEL_INFO will output to standard out, and everything else logs to standard error.

Parameters

context

a GUsbContext

 

flags

a GLogLevelFlags such as G_LOG_LEVEL_ERROR | G_LOG_LEVEL_INFO, or 0

 

Since 0.1.0

Types and Values

G_USB_CONTEXT_ERROR

#define G_USB_CONTEXT_ERROR		(g_usb_context_error_quark ())


struct GUsbContext

struct GUsbContext;


struct GUsbContextClass

struct GUsbContextClass {
	GObjectClass			 parent_class;
};


enum GUsbContextError

Members

G_USB_CONTEXT_ERROR_INTERNAL

   

GUsbContextPrivate

typedef struct _GUsbContextPrivate GUsbContextPrivate;

Private GUsbContext data

Property Details

The “debug-level” property

  “debug-level”              gint

Flags: Read / Write

Allowed values: [0,3]

Default value: 0


The “libusb-context” property

  “libusb-context”           gpointer

Flags: Read / Write / Construct Only