102     ssize_t Read(void* data, size_t len) override;
103     ssize_t Write(const void* data, size_t len) override;
131 static int check(void *_desc, int len, unsigned type, int size)  in check()  argument
135     if(len < size) return -1;  in check()
137     if(hdr->bLength > len) return -1;  in check()
144                              char *ptr, int len, int writable,  in filter_usb_device()  argument
158     if (check(ptr, len, USB_DT_DEVICE, USB_DT_DEVICE_SIZE))  in filter_usb_device()
161     len -= dev->bLength;  in filter_usb_device()
164     if (check(ptr, len, USB_DT_CONFIG, USB_DT_CONFIG_SIZE))  in filter_usb_device()
167     len -= cfg->bLength;  in filter_usb_device()
211         while (len > 0) {  in filter_usb_device()
213             if (check(hdr, len, USB_DT_INTERFACE, USB_DT_INTERFACE_SIZE) == 0)  in filter_usb_device()
215             len -= hdr->bLength;  in filter_usb_device()
219         if (len <= 0)  in filter_usb_device()
223         len -= ifc->bLength;  in filter_usb_device()
233             while (len > 0) {  in filter_usb_device()
235                 if (check(hdr, len, USB_DT_ENDPOINT, USB_DT_ENDPOINT_SIZE) == 0)  in filter_usb_device()
237                 len -= hdr->bLength;  in filter_usb_device()
240             if (len < 0) {  in filter_usb_device()
245             len -= ept->bLength;  in filter_usb_device()
258             if (check((struct usb_descriptor_hdr *)ptr, len,  in filter_usb_device()
260                 len -= USB_DT_SS_EP_COMP_SIZE;  in filter_usb_device()
403 ssize_t LinuxUsbTransport::Write(const void* _data, size_t len)  in Write()  argument
416         xfer = (len > MAX_USBFS_BULK_SIZE) ? MAX_USBFS_BULK_SIZE : len;  in Write()
419         bulk.len = xfer;  in Write()
431         len -= xfer;  in Write()
433     } while(len > 0);  in Write()
438 ssize_t LinuxUsbTransport::Read(void* _data, size_t len)  in Read()  argument
449     while (len > 0) {  in Read()
450         int xfer = (len > MAX_USBFS_BULK_SIZE) ? MAX_USBFS_BULK_SIZE : len;  in Read()
453         bulk.len = xfer;  in Read()
471         len -= n;  in Read()