How to check if device is USB/PC mode? - maemo.org

jaeezzy | # 1 | 2010-01-16, 09:18 | Report

Hi,
I was wondering if anyone can help me as to how I can check if the device is in usb or pc suite mode. I checked libosso but couldn't get any clue and also checked the mce-dev but couldn't see usb/pc modes anywhere. Also I tried going through dbus api but couldn't figure out where to look. So, I would be very grateful for any hints/help coz I'm completely noob when it comes to these api. Thanks

BlueGene | # 2 | 2010-01-16, 12:36 | Report

gconftool-2 is your friend ;-)

Output USB disconnected:

Code:

Nokia-N900-51-1:~# gconftool-2 -R / | grep usb
   sync-usb-mode = false
       statusbar_icon_name = Schema (type: `string' list_type: '*invalid*' car_type: '*invalid*' cdr_type: '*invalid*' locale: `C')
       statusbar_dimmed_icon_name = Schema (type: `string' list_type: '*invalid*' car_type: '*invalid*' cdr_type: '*invalid*' locale: `C')
       statusbar_icon_name = Schema (type: `string' list_type: '*invalid*' car_type: '*invalid*' cdr_type: '*invalid*' locale: `C')
       statusbar_dimmed_icon_name = Schema (type: `string' list_type: '*invalid*' car_type: '*invalid*' cdr_type: '*invalid*' locale: `C')
       statusbar_icon_name = Schema (type: `string' list_type: '*invalid*' car_type: '*invalid*' cdr_type: '*invalid*' locale: `C')
       statusbar_dimmed_icon_name = Schema (type: `string' list_type: '*invalid*' car_type: '*invalid*' cdr_type: '*invalid*' locale: `C')
     mmc-used-over-usb = Schema (type: `bool' list_type: '*invalid*' car_type: '*invalid*' cdr_type: '*invalid*' locale: `C')
     usb-mode = Schema (type: `string' list_type: '*invalid*' car_type: '*invalid*' cdr_type: '*invalid*' locale: `C')
     internal-mmc-used-over-usb = Schema (type: `bool' list_type: '*invalid*' car_type: '*invalid*' cdr_type: '*invalid*' locale: `C')
     usb-device-name = Schema (type: `string' list_type: '*invalid*' car_type: '*invalid*' cdr_type: '*invalid*' locale: `C')
     usb-cable-attached = Schema (type: `bool' list_type: '*invalid*' car_type: '*invalid*' cdr_type: '*invalid*' locale: `C')
      statusbar_icon_name = general_adhocwlan
      statusbar_dimmed_icon_name = statusarea_internetconnection_no
      statusbar_icon_name = general_packetdata
      statusbar_dimmed_icon_name = statusarea_internetconn_packetdata_dimmed
      statusbar_icon_name = general_wlan
      statusbar_dimmed_icon_name = statusarea_internetconnection_no
    mmc-used-over-usb = false
    usb-mode = idle
    internal-mmc-used-over-usb = false
    usb-device-name = unknown
    usb-cable-attached = false

Output USB connected with mass-storage-mode:

Code:

Nokia-N900-51-1:~# gconftool-2 -R / | grep usb
   sync-usb-mode = false
       statusbar_icon_name = Schema (type: `string' list_type: '*invalid*' car_type: '*invalid*' cdr_type: '*invalid*' locale: `C')
       statusbar_dimmed_icon_name = Schema (type: `string' list_type: '*invalid*' car_type: '*invalid*' cdr_type: '*invalid*' locale: `C')
       statusbar_icon_name = Schema (type: `string' list_type: '*invalid*' car_type: '*invalid*' cdr_type: '*invalid*' locale: `C')
       statusbar_dimmed_icon_name = Schema (type: `string' list_type: '*invalid*' car_type: '*invalid*' cdr_type: '*invalid*' locale: `C')
       statusbar_icon_name = Schema (type: `string' list_type: '*invalid*' car_type: '*invalid*' cdr_type: '*invalid*' locale: `C')
       statusbar_dimmed_icon_name = Schema (type: `string' list_type: '*invalid*' car_type: '*invalid*' cdr_type: '*invalid*' locale: `C')
     mmc-used-over-usb = Schema (type: `bool' list_type: '*invalid*' car_type: '*invalid*' cdr_type: '*invalid*' locale: `C')
     usb-mode = Schema (type: `string' list_type: '*invalid*' car_type: '*invalid*' cdr_type: '*invalid*' locale: `C')
     internal-mmc-used-over-usb = Schema (type: `bool' list_type: '*invalid*' car_type: '*invalid*' cdr_type: '*invalid*' locale: `C')
     usb-device-name = Schema (type: `string' list_type: '*invalid*' car_type: '*invalid*' cdr_type: '*invalid*' locale: `C')
     usb-cable-attached = Schema (type: `bool' list_type: '*invalid*' car_type: '*invalid*' cdr_type: '*invalid*' locale: `C')
      statusbar_icon_name = general_adhocwlan
      statusbar_dimmed_icon_name = statusarea_internetconnection_no
      statusbar_icon_name = general_packetdata
      statusbar_dimmed_icon_name = statusarea_internetconn_packetdata_dimmed
      statusbar_icon_name = general_wlan
      statusbar_dimmed_icon_name = statusarea_internetconnection_no
    mmc-used-over-usb = false
    usb-mode = peripheral
    internal-mmc-used-over-usb = true
    usb-device-name = USB-Gerät
    usb-cable-attached = true

Now you only have to find out, where these entries exactly are and how to modify them consistently. But I suppose this wont be difficult anymore ;-)

The Following User Says Thank You to BlueGene For This Useful Post:
jaeezzy

jaeezzy | # 3 | 2010-01-16, 13:56 | Report

Originally Posted by BlueGene View Post

gconftool-2 is your friend ;-)

Now you only have to find out, where these entries exactly are and how to modify them consistently. But I suppose this wont be difficult anymore ;-)

Thanks for this BlueGene. How can I use this with my code. Hopefully I can make use of it.

pH5 | # 4 | 2010-01-18, 07:24 | Report

Check out http://maemo.org/development/, you can find a link to the GConf Reference Manual right on the front page. There's also a link to the Code samples right there. maemo-examples contains two example GConf programs (one for just setting/reading a GConf key, and one for listening to changes).

The Following User Says Thank You to pH5 For This Useful Post:
jaeezzy

jaeezzy | # 5 | 2010-01-18, 09:24 | Report

Thanks for the tips guys. However, I came across lshal and here's my effort so far without any luck so plz help me if I'm not on the right track. I would be very grateful. Thanks.

Code:

#include <hal/libhal.h>
#include <stdio.h>
#include <string.h>

//void set_up(LibHalContext*);
void _device_added(LibHalContext*, const char*);
void _device_removed(LibHalContext*, const char*);
void _property_modified(LibHalContext*, const char*, const char*, dbus_bool_t, dbus_bool_t);

int main(int argc, char *argv[]){
	printf("Starting hal\n");
	LibHalContext *ctx = libhal_ctx_new();
	DBusConnection *dbus;
	dbus = dbus_bus_get(DBUS_BUS_SYSTEM, NULL);
	if (dbus == NULL)
		printf("ERROR CONNECTION DBUS.\n");
	else
		printf("Successfully connected to DBus.\n");
	printf("connecting hal to dbus.\n");
	libhal_ctx_set_dbus_connection(ctx, dbus);
	
	libhal_ctx_set_device_added(ctx, _device_added);
	libhal_ctx_set_device_removed(ctx, _device_removed);
	
	libhal_ctx_init(ctx, NULL);
	printf("Watching devices...\n");
	libhal_device_property_watch_all(ctx, NULL);
	
	return 0;
}

void _device_added(LibHalContext *ctx, const char *udi){
	printf("UDI: %s\n", udi);
	if (strcmp(udi, "/org/freedesktop/Hal/devices/usb_device_1d6b_2_musb_hdrc") == 0){
		printf("Usb added.\n");
	}else
		printf("Unidentified device added.\n");
}

void _device_removed(LibHalContext *ctx, const char *udi){
	printf("UDI: %s\n", udi);
	if (strcmp(udi, "/org/freedesktop/Hal/devices/usb_device_1d6b_2_musb_hdrc") == 0){
		printf("Usb removed.\n");
	}else
		printf("Unidentified device removed.\n");
}