libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
for (i = 0; devlist[i]; i++) {
- if ((err = libusb_get_device_descriptor(devlist[i], &des))) {
- sr_err("Failed to get device descriptor: %s.",
- libusb_error_name(err));
- continue;
- }
+ libusb_get_device_descriptor(devlist[i], &des);
if (des.idVendor != devc->profile->fw_vid
|| des.idProduct != devc->profile->fw_pid)
transfer = libusb_alloc_transfer(0);
libusb_fill_bulk_transfer(transfer, usb->devhdl, HANTEK_EP_IN, buf,
data_amount, cb, (void *)sdi, 4000);
- if ((ret = libusb_submit_transfer(transfer)) != 0) {
+ if ((ret = libusb_submit_transfer(transfer)) < 0) {
sr_err("Failed to submit transfer: %s.",
libusb_error_name(ret));
/* TODO: Free them all. */
return MIN(ret1, ret2);
}
+SR_PRIV int hantek_6xxx_update_coupling(const struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc = sdi->priv;
+ uint8_t coupling = 0xFF & ((devc->coupling[1] << 4) | devc->coupling[0]);
+
+ if (devc->has_coupling) {
+ sr_dbg("update coupling 0x%x", coupling);
+ return write_control(sdi, COUPLING_REG, coupling);
+ } else {
+ sr_dbg("coupling not supported");
+ return SR_OK;
+ }
+}
+
SR_PRIV int hantek_6xxx_update_channels(const struct sr_dev_inst *sdi)
{
struct dev_context *devc = sdi->priv;
hantek_6xxx_update_samplerate(sdi);
hantek_6xxx_update_vdiv(sdi);
+ hantek_6xxx_update_coupling(sdi);
// hantek_6xxx_update_channels(sdi); /* Only 2 channel mode supported. */
return SR_OK;