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Expanded error message when set_active_configuration fails. #120

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Expanded error message when set_active_configuration fails. #120

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5 changes: 4 additions & 1 deletion src/transport/usb.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,8 @@ use anyhow::Result;
use rusb::{Context, DeviceHandle, UsbContext};

use super::Transport;
use anyhow::Context as _;


const ENDPOINT_OUT: u8 = 0x02;
const ENDPOINT_IN: u8 = 0x82;
Expand Down Expand Up @@ -128,7 +130,8 @@ impl UsbTransport {
anyhow::bail!("USB Endpoints not found");
}

device_handle.set_active_configuration(1)?;
device_handle.set_active_configuration(1).context(
"Failed to select USB configuration 1; Is the bootloader running?")?;
let _config = device.active_config_descriptor()?;
let _descriptor = device.device_descriptor()?;

Expand Down