From 04afb7603f90c55ca0fb53be487d50ae2399e324 Mon Sep 17 00:00:00 2001 From: Brad Stein Date: Tue, 6 Jan 2026 05:32:55 -0300 Subject: [PATCH] uvc: log response ioctls failures --- server/src/bin/lesavka-uvc.rs | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/server/src/bin/lesavka-uvc.rs b/server/src/bin/lesavka-uvc.rs index fbf9385..4408724 100644 --- a/server/src/bin/lesavka-uvc.rs +++ b/server/src/bin/lesavka-uvc.rs @@ -453,7 +453,9 @@ fn send_response(fd: i32, req: libc::c_ulong, payload: &[u8]) -> Result<()> { let rc = unsafe { libc::ioctl(fd, req, &resp) }; if rc < 0 { - return Err(std::io::Error::last_os_error()).context("UVCIOC_SEND_RESPONSE"); + let err = std::io::Error::last_os_error(); + eprintln!("[lesavka-uvc] send_response failed: {err}"); + return Err(err).context("UVCIOC_SEND_RESPONSE"); } Ok(()) } @@ -465,7 +467,9 @@ fn send_stall(fd: i32, req: libc::c_ulong) -> Result<()> { }; let rc = unsafe { libc::ioctl(fd, req, &resp) }; if rc < 0 { - return Err(std::io::Error::last_os_error()).context("UVCIOC_SEND_RESPONSE(stall)"); + let err = std::io::Error::last_os_error(); + eprintln!("[lesavka-uvc] send_stall failed: {err}"); + return Err(err).context("UVCIOC_SEND_RESPONSE(stall)"); } Ok(()) }