-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Fri, 7 Mar 2003 18:24, Shiva_Shankar wrote: > Thanks for your response. I have tried to talk to the device directly using > /proc/bus/XXX/YYY but it is returning "device busy" because the usb device > has only one endpoint which gives the mouse data as well as my control > packet. I have tried but with no success. It would help if you could post your test code. Without that, it is almost impossible to tell what you are doing wrong.
> Now I have got the packet but I want to communicate to the user application > can anyone suggest me a way I can do it. Here is some test code, for a Logitech mouse. This tests whether the mouse is in 400cpi or 800cpi mode, by sending a vendor specific command, and getting back one byte. This code needs Johannes' libusb (http://libusb.sf.net) to be installed, and naturally you need to compile it with -lusb. HTH Brad /* * Dump resolution on logitech dual optical mice. */ #include <stdio.h> #include <usb.h> int main(void) { struct usb_bus *bus; struct usb_device *dev; usb_dev_handle *usb_h; char resolution = 0; int result = 0; usb_init(); usb_find_busses(); usb_find_devices(); printf("bus/device idVendor/idProduct\n"); for (bus = usb_busses; bus; bus = bus->next) { for (dev = bus->devices; dev; dev = dev->next) { printf("%s/%s %04X/%04X\n", bus->dirname, dev->filename, dev->descriptor.idVendor, dev->descriptor.idProduct); if ( (0x046d == dev->descriptor.idVendor) && (0xC506 == dev->descriptor.idProduct) ) { usb_h = usb_open(dev); result = usb_control_msg(usb_h, 0xC0, 0x01, 0x0017, 0x0000, &resolution, 0x0001, 1); printf(" Resolution: %x (%x)", resolution, result); switch (resolution) { case 0: printf("(You probably aren't root)\n"); break; case 3: printf("(400cpi)\n"); break; case 4: printf("(800cpi)\n"); break; default: printf("(Unknown result)\n"); break; } usb_close(usb_h); } } } return 0; } -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE+awfOW6pHgIdAuOMRAgq1AKC4EXX90KP4RY+WFkkxq9e6GbbRrwCePcQB pOl6Zgib4VyWs1NubmDBcgg= =RV9k -----END PGP SIGNATURE----- ------------------------------------------------------- This SF.net email is sponsored by: Etnus, makers of TotalView, The debugger for complex code. Debugging C/C++ programs can leave you feeling lost and disoriented. TotalView can help you find your way. Available on major UNIX and Linux platforms. Try it free. www.etnus.com _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
