From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Pierre-Yves Paulus To: BlueZ development Date: Wed, 05 Jul 2006 15:47:04 +0200 Message-Id: <1152107225.15040.48.camel@localhost> Mime-Version: 1.0 Subject: [Bluez-devel] Nothing to read on /dev/rfcomm0 Reply-To: pypaulus@alterwave.com, BlueZ development List-Id: BlueZ development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Sender: bluez-devel-bounces@lists.sourceforge.net Errors-To: bluez-devel-bounces@lists.sourceforge.net Hello everyone, I'm trying to to perform an OBEX push. Using the D-Bus API, I can get connected to the device. /dev/rfcomm0 gets created, and I can write to it. But I can't read anything out of it, I always get EOF. Here is what I do: -Get the RFCOMM object from D-Bus -Call ConnectByChannel(address, channel); -At this point my phone prompts me and ask me if I want to accept the transfer or not. Of course, I accept it. -/dev/rfcomm0 gets created. -I start a stupid c program which tries to read /dev/rfcomm and shows what it reads on the terminal as hex (char *input[1]; fscanf(stream, "% c", input); printf("%x ", input[0]); -I write new byte[] { (byte)0x80, 0x00, 0x07, 0x10, 0x00, 0x20, 0x00}; to /dev/rfcomm0 (that's an OBEX connect sequence as you know, this part is from some java code). From hcidump -X I can see it being sent to the device: < ACL data: handle 42 flags 0x02 dlen 15 L2CAP(d): cid 0x008f len 11 [psm 3] RFCOMM(d): UIH: cr 1 dlci 18 pf 0 ilen 7 fcs 0xce 0000: 80 00 07 10 00 20 00 ..... . -The device does answer: > HCI Event: Number of Completed Packets (0x13) plen 5 0000: 01 2a 00 01 00 .*... > ACL data: handle 42 flags 0x02 dlen 9 L2CAP(d): cid 0x0040 len 5 [psm 3] RFCOMM(d): UIH: cr 0 dlci 18 pf 1 ilen 0 fcs 0x8 credits 4 > ACL data: handle 42 flags 0x02 dlen 16 L2CAP(d): cid 0x0040 len 12 [psm 3] RFCOMM(d): UIH: cr 0 dlci 18 pf 1 ilen 7 fcs 0x8 credits 1 0000: a0 00 07 10 00 07 fc And the last line above (which is the OBEX connection acceptance sequence) never shows up on /dev/rfcomm0. What is wrong here? Just afterwards, /dev/rfcomm0 get disconnected and the whole hcid does crash because of some memory error I didn't have looked at so far. Some info if it may help anybody: hcid[19317]: Bluetooth HCI daemon hcid[19317]: Register path:/org/bluez fallback:1 hcid[19317]: Device hci0 has been added hcid[19317]: Starting security manager 0 hcid[19317]: Device hci0 has been activated hcid[19317]: Register path:/org/bluez/hci0 fallback:0 hcid[19317]: Connect in progress hcid[19317]: rfcomm_connect_cb: connected hcid[19317]: Chmod return: 0 hcid[19317]: RFCOMM node /dev/rfcomm0 was disconnected *** glibc detected *** corrupted double-linked list: 0x0806e8c8 *** Aborted (gdb) bt #0 0xffffe410 in __kernel_vsyscall () #1 0xb7e00101 in raise () from /lib/tls/libc.so.6 #2 0xb7e017fd in abort () from /lib/tls/libc.so.6 #3 0xb7e32ef7 in __fsetlocking () from /lib/tls/libc.so.6 #4 0xb7e38c16 in malloc_usable_size () from /lib/tls/libc.so.6 #5 0xb7e38da1 in malloc_usable_size () from /lib/tls/libc.so.6 #6 0xb7e392df in malloc_usable_size () from /lib/tls/libc.so.6 #7 0xb7e395d9 in free () from /lib/tls/libc.so.6 #8 0xb7ef3f5e in hci_for_each_dev () from /usr/lib/libbluetooth.so.2 #9 0xb7ef42d4 in hci_devid () from /usr/lib/libbluetooth.so.2 #10 0x08053f46 in hcid_dbus_disconn_complete (local=0x0, status=0 '\0', handle=42, reason=22 '\026') at dbus.c:1236 #11 0x0804d1a0 in io_security_event (chan=0x806c788, cond=G_IO_IN, data=0x806c728) at security.c:607 #12 0x0805feba in g_main_loop_run (loop=0x8066b08) at glib-ectomy.c:305 #13 0x0804c7db in main (argc=0, argv=0x0) at main.c:729 (For some reason, line numbers do not show up for libluetooth.so.2 in the bt, even if I did add "-g" to the CFLAGS in the Makefile. Do I have to do something else/more to get the full information?) Thanks in advance, Best Regards. Pierre-Yves Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel