Hans Petter Selasky wrote:
On Sunday 07 June 2009 04:45:20 Jack Twilley
wrote:
I have been looking through the source to
usbconfig and other tools
trying to figure out how to retrieve the
iManufacturer and iProduct
strings. The libusb20 man page describes the
libusb20_dev_get_device_desc() function but
there's no useful
information on the struct it returns. The
include file looks as if the
struct is automagically generated by macros
within macros which is too
complicated for me to figure out without
help. Any ideas? There's
gotta be a better way than using
LIBUSB20_DEVICE_DESC()...
After you find the string index, you can use the
following function to get strings:
int
libusb20_dev_req_string_simple_sync(struct
libusb20_device *pdev,
uint8_t index, void *ptr, uint16_t len);
Finding the string index was harder than I expected, since I can't get
anything useful out of what libusb20_dev_get_device_desc() returns.
Heck, I even tried a short for loop from 0 to 15 just to see if the
values I saw in usbconfig were magic values pointing to the string.
How do I find the string index?
--HPS
Thanks!
Jack.
_______________________________________________
[email protected] mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-usb
To unsubscribe, send any mail to "[email protected]"
