On 1/3/19 10:48 AM, Matthias Apitz wrote:
Is there a way log log any init call to libusb.so to see which process
is doing something with libusb.so after devd(8) started pcscd?
Hi,
You can add a print in the kernel sys/dev/usb/usb_generic.c in the function:
static int
ugen_open(struct usb_fifo *f, int fflags)
printf("USB opened by PID %d %s\n", curthread->td_proc->p_pid,
curthread->td_proc->p_comm);
Index: sys/dev/usb/usb_generic.c
===================================================================
--- sys/dev/usb/usb_generic.c (revision 342455)
+++ sys/dev/usb/usb_generic.c (working copy)
@@ -185,6 +185,8 @@
DPRINTFN(6, "flag=0x%x\n", fflags);
+ printf("USB opened by PID %d %s\n", curthread->td_proc->p_pid, curthread->td_proc->p_comm);
+
mtx_lock(f->priv_mtx);
switch (usbd_get_speed(f->udev)) {
case USB_SPEED_LOW:
--HPS
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