189 static void CloseFunctionFs(usb_handle* h) {  in CloseFunctionFs()  argument
190     h->bulk_in.reset();  in CloseFunctionFs()
191     h->bulk_out.reset();  in CloseFunctionFs()
192     h->control.reset();  in CloseFunctionFs()
195 static bool InitFunctionFs(usb_handle* h) {  in InitFunctionFs()  argument
198     if (h->control < 0) {  // might have already done this before  in InitFunctionFs()
200         h->control.reset(open(kUsbFfsFastbootEp0, O_RDWR));  in InitFunctionFs()
201         if (h->control < 0) {  in InitFunctionFs()
206         auto ret = write(h->control.get(), &v2_descriptor, sizeof(v2_descriptor));  in InitFunctionFs()
212         ret = write(h->control.get(), &strings, sizeof(strings));  in InitFunctionFs()
221     h->bulk_out.reset(open(kUsbFfsFastbootOut, O_RDONLY));  in InitFunctionFs()
222     if (h->bulk_out < 0) {  in InitFunctionFs()
227     h->bulk_in.reset(open(kUsbFfsFastbootIn, O_WRONLY));  in InitFunctionFs()
228     if (h->bulk_in < 0) {  in InitFunctionFs()
233     h->read_aiob.fd = h->bulk_out.get();  in InitFunctionFs()
234     h->write_aiob.fd = h->bulk_in.get();  in InitFunctionFs()
238     CloseFunctionFs(h);  in InitFunctionFs()