Citeren vk <[email protected]>:
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.
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?
I don't know, I'm not an expert on FreeBSD.
Best regards, Arjen
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