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-rw-r--r--tools/serial_probe/serial.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/tools/serial_probe/serial.c b/tools/serial_probe/serial.c
index 0bedd0fd0..9ae3924c3 100644
--- a/tools/serial_probe/serial.c
+++ b/tools/serial_probe/serial.c
@@ -309,7 +309,7 @@ static int init_pnp_com_seq1( int fd ) {
/* Wait for response, 1st phase */
modem_lines |= TIOCM_RTS;
set_serial_lines(fd, modem_lines);
- usleep(200000);
+ /* usleep(200000); => AQ: not valid as we should look to receive data during this time!! */
return rc;
}
@@ -336,7 +336,7 @@ static int init_pnp_com_seq2( int fd ) {
/* turn on DTR and RTS */
modem_lines |= (TIOCM_DTR | TIOCM_RTS);
set_serial_lines(fd, modem_lines);
- usleep(200000);
+ /* usleep(200000); => AQ: not valid as we should look to receive data during this time!! */
return rc;
}
@@ -646,8 +646,11 @@ static int read_pnp_string( int fd, unsigned char *pnp_string, int *pnp_len, int
done = 1;
}
pnp_string[pnp_index] = 0;
- *pnp_len=pnp_index;
- return PNP_COM_OK;
+ *pnp_len=pnp_index;
+ if(*pnp_len > 0)
+ return PNP_COM_OK;
+ else /* allows to call seq2 to be conformant */
+ return PNP_COM_FAIL;
}
/* parse the PnP ID string into components */