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Commit f41ef0ee authored by Mike Lockwood's avatar Mike Lockwood
Browse files

Add support for synchronous bulk USB transfers 



Change-Id: Id5de49e4d728a702fa1583ecc24f83f36cc57d21
Signed-off-by: default avatarMike Lockwood <lockwood@android.com>
parent 6cfacdf9

media/mtp/MtpDevice.cpp

+5 −5
Original line number Diff line number Diff line
@@ -92,16 +92,16 @@ MtpDevice* MtpDevice::open(const char* deviceName, int fd) { 
                // some music players need to see this before entering MTP mode.

                char buffer[256];

                memset(buffer, 0, sizeof(buffer));

                int ret = usb_device_send_control(device,

                int ret = usb_device_control_transfer(device,

                        USB_DIR_IN|USB_RECIP_DEVICE|USB_TYPE_STANDARD,

                        USB_REQ_GET_DESCRIPTOR, (USB_DT_STRING << 8) | 0xEE,

                        0, sizeof(buffer), buffer);

                printf("usb_device_send_control returned %d errno: %d\n", ret, errno);

                        0, buffer, sizeof(buffer), 0);

                printf("usb_device_control_transfer returned %d errno: %d\n", ret, errno);

                if (ret > 0) {

                    printf("got MTP string %s\n", buffer);

                    ret = usb_device_send_control(device,

                    ret = usb_device_control_transfer(device,

                            USB_DIR_IN|USB_RECIP_DEVICE|USB_TYPE_VENDOR, 1,

                            0, 4, sizeof(buffer), buffer);

                            0, 4, buffer, sizeof(buffer), 0);

                    printf("OS descriptor got %d\n", ret);

                } else {

                    printf("no MTP string\n");