X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Ffx2lafw%2Fprotocol.c;h=c87f659d07e249a28bfc5a771bf324eeb592934c;hb=41812aca436805b0614f2a8f31cf2f8ce494aea0;hp=fae80b72171df38fa02e30325a2841f856ef98e7;hpb=bc497772512c2fd37516964ade58b69448aae37c;p=libsigrok.git

diff --git a/src/hardware/fx2lafw/protocol.c b/src/hardware/fx2lafw/protocol.c
index fae80b72..c87f659d 100644
--- a/src/hardware/fx2lafw/protocol.c
+++ b/src/hardware/fx2lafw/protocol.c
@@ -38,6 +38,8 @@ struct cmd_start_acquisition {
 
 #pragma pack(pop)
 
+#define USB_TIMEOUT 100
+
 static int command_get_fw_version(libusb_device_handle *devhdl,
 				  struct version_info *vi)
 {
@@ -45,7 +47,7 @@ static int command_get_fw_version(libusb_device_handle *devhdl,
 
 	ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
 		LIBUSB_ENDPOINT_IN, CMD_GET_FW_VERSION, 0x0000, 0x0000,
-		(unsigned char *)vi, sizeof(struct version_info), 100);
+		(unsigned char *)vi, sizeof(struct version_info), USB_TIMEOUT);
 
 	if (ret < 0) {
 		sr_err("Unable to get version info: %s.",
@@ -65,7 +67,7 @@ static int command_get_revid_version(struct sr_dev_inst *sdi, uint8_t *revid)
 
 	cmd = devc->dslogic ? DS_CMD_GET_REVID_VERSION : CMD_GET_REVID_VERSION;
 	ret = libusb_control_transfer(devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
-		LIBUSB_ENDPOINT_IN, cmd, 0x0000, 0x0000, revid, 1, 100);
+		LIBUSB_ENDPOINT_IN, cmd, 0x0000, 0x0000, revid, 1, USB_TIMEOUT);
 
 	if (ret < 0) {
 		sr_err("Unable to get REVID: %s.", libusb_error_name(ret));
@@ -126,7 +128,7 @@ SR_PRIV int fx2lafw_command_start_acquisition(const struct sr_dev_inst *sdi)
 	/* Send the control message. */
 	ret = libusb_control_transfer(usb->devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
 			LIBUSB_ENDPOINT_OUT, CMD_START, 0x0000, 0x0000,
-			(unsigned char *)&cmd, sizeof(cmd), 100);
+			(unsigned char *)&cmd, sizeof(cmd), USB_TIMEOUT);
 	if (ret < 0) {
 		sr_err("Unable to send start command: %s.",
 		       libusb_error_name(ret));
@@ -192,7 +194,7 @@ SR_PRIV int fx2lafw_dev_open(struct sr_dev_inst *sdi, struct sr_dev_driver *di)
 	uint8_t revid;
 	char connection_id[64];
 
-	drvc = di->priv;
+	drvc = di->context;
 	devc = sdi->priv;
 	usb = sdi->conn;
 
@@ -242,6 +244,16 @@ SR_PRIV int fx2lafw_dev_open(struct sr_dev_inst *sdi, struct sr_dev_driver *di)
 			break;
 		}
 
+		if (libusb_has_capability(LIBUSB_CAP_SUPPORTS_DETACH_KERNEL_DRIVER)) {
+			if (libusb_kernel_driver_active(usb->devhdl, USB_INTERFACE) == 1) {
+				if ((ret = libusb_detach_kernel_driver(usb->devhdl, USB_INTERFACE)) < 0) {
+					sr_err("Failed to detach kernel driver: %s.",
+						libusb_error_name(ret));
+					return SR_ERR;
+				}
+			}
+		}
+
 		ret = command_get_fw_version(usb->devhdl, &vi);
 		if (ret != SR_OK) {
 			sr_err("Failed to get firmware version.");
@@ -373,7 +385,7 @@ static void resubmit_transfer(struct libusb_transfer *transfer)
 
 }
 
-SR_PRIV void fx2lafw_receive_transfer(struct libusb_transfer *transfer)
+SR_PRIV void LIBUSB_CALL fx2lafw_receive_transfer(struct libusb_transfer *transfer)
 {
 	struct sr_dev_inst *sdi;
 	struct dev_context *devc;
@@ -396,8 +408,8 @@ SR_PRIV void fx2lafw_receive_transfer(struct libusb_transfer *transfer)
 		return;
 	}
 
-	sr_dbg("receive_transfer(): status %d received %d bytes.",
-		transfer->status, transfer->actual_length);
+	sr_dbg("receive_transfer(): status %s received %d bytes.",
+		libusb_error_name(transfer->status), transfer->actual_length);
 
 	/* Save incoming transfer before reusing the transfer struct. */
 	unitsize = devc->sample_wide ? 2 : 1;