Displaying 1 result from an estimated 1 matches for "max_return_size".
blazer_usb: compatibility with Ippon BackPro UPSes (Phoenix Power Co., Ltd usb-to-serial controller)
2010 Jan 06
1
blazer_usb: compatibility with Ippon BackPro UPSes (Phoenix Power Co., Ltd usb-to-serial controller)
...}
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6. Read back return string from UPS in one chunk using usb_interrupt_read:
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char tmp[256];
memset(tmp, 0, sizeof(tmp));
int ret = usb_interrupt_read(devfd, 0x81, tmp, max_return_size, timeout);
if(ret <= 0) {
return_buf[0] = 0;
return -1;
}
int max = (max_return_size > 256) ? 256 : max_return_size;
memcpy(return_buf, tmp, max);
return_buf[max] = 0;
usb_close(devfd);
return max;
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The differences between the...