Good day, Arjen.
> Support for libusb is 'experimental' at best in FreeBSD and depending
> on the version you're using, 'unusable'. You may try if adding a small
> delay between sending a command and reading back the reply helps (YMMV):
> --- trunk/drivers/blazer_usb.c (revision 1861)
> +++ trunk/drivers/blazer_usb.c (working copy)
> @@ -72,6 +72,7 @@
> upsdebugx(3, "send: %.*s", (int)strcspn(tmp, "\r"), tmp);
> memset(buf, 0, buflen);
> + usleep(300000);
> for (i = 0; (i <= buflen-8) && (strchr(buf, '\r') == NULL); i += ret)
> {
> If your UPS also has a serial port available, it is probably more
> reliable to use a USB to serial converter (that is supported by the
> kernel) than attempting to run a user space program that attempts to
> handle USB through libusb.
> Best regards, Arjen
I try add usleep(300000); to blazer_usb and it is not helps. Maybe
you can tell how use USB to serial converter? And which?
--
С уважением,
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