hardware: Call libusb_error_name() in all USB-related error messages

[libsigrok.git] / hardware / zeroplus-logic-cube / gl_usb.c

diff --git a/hardware/zeroplus-logic-cube/gl_usb.c b/hardware/zeroplus-logic-cube/gl_usb.c
index 6b894da91cd994d0601412d535e2079f97771f2f..cd7d97a81f043fd62594a5b8f90e42f2b524dc7b 100644 (file)
--- a/hardware/zeroplus-logic-cube/gl_usb.c
+++ b/hardware/zeroplus-logic-cube/gl_usb.c
@@ -58,8 +58,7 @@ static int gl_write_address(libusb_device_handle *devh, unsigned int address)
        ret = libusb_control_transfer(devh, CTRL_OUT, 0xc, REQ_WRITEADDR,
                                         0, packet, 1, TIMEOUT);
        if (ret != 1)
-               sr_err("zp: %s: libusb_control_transfer returned %d.",
-                      __func__, ret);
+               sr_err("zp: %s: %s.", __func__, libusb_error_name(ret));
        return ret;
 }
 
@@ -71,8 +70,7 @@ static int gl_write_data(libusb_device_handle *devh, unsigned int val)
        ret = libusb_control_transfer(devh, CTRL_OUT, 0xc, REQ_WRITEDATA,
                                      0, packet, 1, TIMEOUT);
        if (ret != 1)
-               sr_err("zp: %s: libusb_control_transfer returned %d.",
-                      __func__, ret);
+               sr_err("zp: %s: %s.", __func__, libusb_error_name(ret));
        return ret;
 }
 
@@ -84,8 +82,8 @@ static int gl_read_data(libusb_device_handle *devh)
        ret = libusb_control_transfer(devh, CTRL_IN, 0xc, REQ_READDATA,
                                      0, packet, 1, TIMEOUT);
        if (ret != 1)
-               sr_err("zp: %s: libusb_control_transfer returned %d, "
-                      "val=%hhx.", __func__, ret, packet[0]);
+               sr_err("zp: %s: %s, val=%hhx.", __func__,
+                      libusb_error_name(ret), packet[0]);
        return (ret == 1) ? packet[0] : ret;
 }
 
@@ -100,13 +98,14 @@ SR_PRIV int gl_read_bulk(libusb_device_handle *devh, void *buffer,
        ret = libusb_control_transfer(devh, CTRL_OUT, 0x4, REQ_READBULK,
                                      0, packet, 8, TIMEOUT);
        if (ret != 8)
-               sr_err("zp: %s: libusb_control_transfer returned %d.",
-                      __func__, ret);
+               sr_err("zp: %s: libusb_control_transfer: %s.", __func__,
+                      libusb_error_name(ret));
 
        ret = libusb_bulk_transfer(devh, EP1_BULK_IN, buffer, size,
                                   &transferred, TIMEOUT);
        if (ret < 0)
-               sr_err("zp: Bulk read error %d.", ret);
+               sr_err("zp: %s: libusb_bulk_transfer: %s.", __func__,
+                      libusb_error_name(ret));
        return transferred;
 }