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@ -2286,6 +2286,7 @@ usb_bulk_transfer(struct libusb_device_handle *dev_handle,
@@ -2286,6 +2286,7 @@ usb_bulk_transfer(struct libusb_device_handle *dev_handle,
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#if DO_USB_STATS |
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struct timeval tv_start, tv_finish; |
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#endif |
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unsigned char *buf; |
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/* Limit length of transfer to the largest this descriptor supports
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* and leave the higher level functions to transfer more if needed. */ |
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@ -2295,6 +2296,9 @@ usb_bulk_transfer(struct libusb_device_handle *dev_handle,
@@ -2295,6 +2296,9 @@ usb_bulk_transfer(struct libusb_device_handle *dev_handle,
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MaxPacketSize = cgpu->usbdev->found->wMaxPacketSize; |
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if (length > MaxPacketSize) |
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length = MaxPacketSize; |
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buf = alloca(MaxPacketSize); |
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if (endpoint == LIBUSB_ENDPOINT_OUT) |
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memcpy(buf, data, length); |
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STATS_TIMEVAL(&tv_start); |
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cg_rlock(&cgusb_fd_lock); |
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@ -2346,6 +2350,8 @@ usb_bulk_transfer(struct libusb_device_handle *dev_handle,
@@ -2346,6 +2350,8 @@ usb_bulk_transfer(struct libusb_device_handle *dev_handle,
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if (err) |
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cgpu->usbinfo.clear_fail_count++; |
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} |
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if (endpoint == LIBUSB_ENDPOINT_OUT) |
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memcpy(data, buf, length); |
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return err; |
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} |
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