port basic linux c program to Android

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Socoder -> C/C++/C#/Other -> port basic linux c program to Android
Mon, 04 Feb 2013, 07:16
waroffice	good afternoon gents, I was wondering if someone good with Android could port the code below to be Android friendly. /* * sixpair.c version 2007-04-18 * Compile with: gcc -o sixpair sixpair.c -lusb / #include <string.h> #include <unistd.h> #include <stdio.h> #include <usb.h> #define VENDOR 0x054c #define PRODUCT 0x0268 #define USB_DIR_IN 0x80 #define USB_DIR_OUT 0 void fatal(char msg) { perror(msg); exit(1); } void show_master(usb_dev_handle devh, int itfnum) { printf("Current Bluetooth master: "); unsigned char msg[8]; int res = usb_control_msg (devh, USB_DIR_IN \| USB_TYPE_CLASS \| USB_RECIP_INTERFACE, 0x01, 0x03f5, itfnum, (void)msg, sizeof(msg), 5000); if ( res < 0 ) { perror("USB_REQ_GET_CONFIGURATION"); return; } printf("%02x:%02x:%02x:%02x:%02x:%02x\n", msg[2], msg[3], msg[4], msg[5], msg[6], msg[7]); } void set_master(usb_dev_handle devh, int itfnum, int mac[6]) { printf("Setting master bd_addr to %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); char msg[8]= { 0x01, 0x00, mac[0],mac[1],mac[2],mac[3],mac[4],mac[5] }; int res = usb_control_msg (devh, USB_DIR_OUT \| USB_TYPE_CLASS \| USB_RECIP_INTERFACE, 0x09, 0x03f5, itfnum, msg, sizeof(msg), 5000); if ( res < 0 ) fatal("USB_REQ_SET_CONFIGURATION"); } void process_device(int argc, char argv, struct usb_device dev, struct usb_config_descriptor cfg, int itfnum) { int mac[6], have_mac=0; usb_dev_handle devh = usb_open(dev); if ( ! devh ) fatal("usb_open"); usb_detach_kernel_driver_np(devh, itfnum); int res = usb_claim_interface(devh, itfnum); if ( res < 0 ) fatal("usb_claim_interface"); show_master(devh, itfnum); if ( argc >= 2 ) { if ( sscanf(argv[1], "%x:%x:%x:%x:%x:%x", &mac[0],&mac[1],&mac[2],&mac[3],&mac[4],&mac[5]) != 6 ) { printf("usage: %s [<bd_addr of master>]\n", argv[0]); exit(1); } } else { FILE f = popen("hcitool dev", "r"); if ( !f \|\| fscanf(f, "%s\n%s %x:%x:%x:%x:%x:%x", &mac[0],&mac[1],&mac[2],&mac[3],&mac[4],&mac[5]) != 6 ) { printf("Unable to retrieve local bd_addr from `hcitool dev`.\n"); printf("Please enable Bluetooth or specify an address manually.\n"); exit(1); } pclose(f); } set_master(devh, itfnum, mac); usb_close(devh); } int main(int argc, char argv[]) { usb_init(); if ( usb_find_busses() < 0 ) fatal("usb_find_busses"); if ( usb_find_devices() < 0 ) fatal("usb_find_devices"); struct usb_bus busses = usb_get_busses(); if ( ! busses ) fatal("usb_get_busses"); int found = 0; struct usb_bus bus; for ( bus=busses; bus; bus=bus->next ) { struct usb_device dev; for ( dev=bus->devices; dev; dev=dev->next) { struct usb_config_descriptor cfg; for ( cfg = dev->config; cfg < dev->config + dev->descriptor.bNumConfigurations; ++cfg ) { int itfnum; for ( itfnum=0; itfnum<cfg->bNumInterfaces; ++itfnum ) { struct usb_interface itf = &cfg->interface[itfnum]; struct usb_interface_descriptor alt; for ( alt = itf->altsetting; alt < itf->altsetting + itf->num_altsetting; ++alt ) { if ( dev->descriptor.idVendor == VENDOR && dev->descriptor.idProduct == PRODUCT && alt->bInterfaceClass == 3 ) { process_device(argc, argv, dev, cfg, itfnum); ++found; } } } } } } if ( ! found ) printf("No controller found on USB busses.\n"); return 0; } --v I had a look but Im not good with Android Thanks
Mon, 04 Feb 2013, 10:23
Dabz	Mmmmm... The major stumbling block will be that usb.h lib... But, it looks like someone has ported your usb whatsit to android already:- github.com/trevd/libusb1-android github.com/trevd/libusb0-android Source: groups.google.com/forum/?fromgroups=#!topic/android-building/jk2iyiI8n2k Just a guess, but, you may be able to use that, alongside the Android NDK and build it:- developer.android.com/tools/sdk/ndk/index.html I wish I had the time to play to see if I can get it building, but alas, I've got a load on myself, hopefully though, that'll get you going! Dabz -=-=- Intel Core i5 6400 2.7GHz, NVIDIA GeForce GTX 1070 (8GB), 8Gig DDR4 RAM, 256GB SSD, 1TB HDD, Windows 10 64bit
Mon, 04 Feb 2013, 12:50
spinal	Wait, you can code for android in c? Why did I not know that?! -=-=- Check out my excellent homepage!
Mon, 04 Feb 2013, 13:16
Dabz	Wait, you can code for android in c? Why did I not know that?! It's basically there for such a thing that waroffice wants to do, as in, use existing code on Android... Saying that, the NDK is what GLBasic targets when it compiles for android, where as monkey uses the more traditional Java based SDK. As far as I can make out, there's no real benefit speed wise for casual/normal apps, the SDK will handle all that, but, if your pushing physics or something along them lines, it's worth a look! Dabz -=-=- Intel Core i5 6400 2.7GHz, NVIDIA GeForce GTX 1070 (8GB), 8Gig DDR4 RAM, 256GB SSD, 1TB HDD, Windows 10 64bit