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Code Issues Releases Wiki Activity

Retry up to USB_RETRY_MAX times to clear a halt condition before failing.

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This commit is contained in:
Con Kolivas 2013-10-11 14:37:40 +11:00
parent 3a7a677f45
commit 6d18ce4caa
1 changed files with 13 additions and 9 deletions
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22
usbutils.c
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@ -2310,16 +2310,20 @@ usb_bulk_transfer(struct libusb_device_handle *dev_handle, int intinfo,
usb_cmdname(cmd), *transferred, err, errn);
if (err == LIBUSB_ERROR_PIPE || err == LIBUSB_TRANSFER_STALL) {
cgpu->usbinfo.last_pipe = time(NULL);
cgpu->usbinfo.pipe_count++;
applog(LOG_INFO, "%s%i: libusb pipe error, trying to clear",
cgpu->drv->name, cgpu->device_id);
err = libusb_clear_halt(dev_handle, endpoint);
applog(LOG_DEBUG, "%s%i: libusb pipe error%scleared",
cgpu->drv->name, cgpu->device_id, err ? " not " : " ");
int retries = 0;
if (err)
cgpu->usbinfo.clear_fail_count++;
do {
cgpu->usbinfo.last_pipe = time(NULL);
cgpu->usbinfo.pipe_count++;
applog(LOG_INFO, "%s%i: libusb pipe error, trying to clear",
cgpu->drv->name, cgpu->device_id);
err = libusb_clear_halt(dev_handle, endpoint);
applog(LOG_DEBUG, "%s%i: libusb pipe error%scleared",
cgpu->drv->name, cgpu->device_id, err ? " not " : " ");
if (err)
cgpu->usbinfo.clear_fail_count++;
} while (err && ++retries < USB_RETRY_MAX);
}
if ((endpoint & LIBUSB_ENDPOINT_DIR_MASK) == LIBUSB_ENDPOINT_IN)
memcpy(data, buf, length);