Messages in this thread | | | From | Stefan Bauer <> | Subject | Re: [PATCH 02/18] lirc serial port receiver/transmitter device driver | Date | Fri, 19 Sep 2008 20:05:11 +0200 |
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On Tuesday 16 September 2008 06:08, Jarod Wilson wrote: > Current git tree works for receiving IR signals via lirc_serial (tested by > Janne) and via lirc_mceusb2 (tested by me). Something is still slightly > haywire with lirc_i2c though. It registers fine, but IR signals simply > aren't making it to lircd. Probably unrelated to the dynamic device num > changes, looking into it.
Thank you for keeping me up to date, here are my test results with todays (36e60bd457588b2a2fd37e0c1d0652a9fe214d85) git:
- Compiles fine, except some warnings:
drivers/input/lirc/lirc_dev.h:60: warning: 'lirc_buffer_available' defined but not used drivers/input/lirc/lirc_dev.h:72: warning: 'lirc_buffer_write' defined but not used drivers/input/lirc/lirc_dev.h:56: warning: 'lirc_buffer_empty' defined but not used drivers/input/lirc/lirc_dev.h:60: warning: 'lirc_buffer_available' defined but not used drivers/input/lirc/lirc_dev.h:66: warning: 'lirc_buffer_read' defined but not used
- Module loads fine, with this messages:
lirc_dev: IR Remote Control driver registered, major 252 lirc_serial: auto-detected active low receiver lirc_dev: lirc_register_driver: sample_rate: 0
- But lircd crashes immediately every time irexec/irw tries to connect:
BUG: unable to handle kernel NULL pointer dereference at 0000000c IP: [<cabc9006>] :lirc_dev:lirc_buffer_clear+0x6/0x17 *pde = 00000000 Oops: 0002 [#1] Modules linked in: lirc_serial lirc_dev ves1820 arc4 ecb crypto_blkcipher cryptomgr crypto_algapi rt61pci rt2x00pci rt2x00lib led_class dvb_ttpci saa7146_vv saa7146 videobuf_dma_sg videobuf_core mac80211 videodev v4l1_compat ttpci_eeprom ehci_hcd uhci_hcd cfg80211 eeprom_93cx6
Pid: 2501, comm: lircd Not tainted (2.6.27-rc5 #7) EIP: 0060:[<cabc9006>] EFLAGS: 00010046 CPU: 0 EIP is at lirc_buffer_clear+0x6/0x17 [lirc_dev] EAX: 00000000 EBX: c7825cc0 ECX: cabc94f1 EDX: 00000246 ESI: fffffff0 EDI: c726537c EBP: c6bdf000 ESP: c6b73eac DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 Process lircd (pid: 2501, ti=c6b72000 task=c72ef7a0 task.ti=c6b72000) Stack: cabc958f 00000000 c7825d3c c014e15c 00000000 c6bdf000 c726537c 00000000 c014e09b c014b052 c78c2900 c759fd80 c6b73f14 c6bdf000 c6b73f14 00000003 c014b156 c6bdf000 00000000 00000000 00000000 c01544ae 00000002 00000026 Call Trace: [<cabc958f>] irctl_open+0x9e/0x131 [lirc_dev] [<c014e15c>] chrdev_open+0xc1/0xf6 [<c014e09b>] chrdev_open+0x0/0xf6 [<c014b052>] __dentry_open+0xf2/0x1da [<c014b156>] nameidata_to_filp+0x1c/0x2c [<c01544ae>] do_filp_open+0x28b/0x545 [<c015bc37>] alloc_fd+0x46/0xad [<c014ae8d>] do_sys_open+0x42/0xb6 [<c014af45>] sys_open+0x1e/0x23 [<c010297d>] sysenter_do_call+0x12/0x25 [<c02f0000>] ioctl_standard_iw_point+0x12d/0x200 ======================= Code: <c7> 40 0c 00 00 00 00 c7 40 08 00 00 00 00 52 9d c3 53 89 c3 8b 40 EIP: [<cabc9006>] lirc_buffer_clear+0x6/0x17 [lirc_dev] SS:ESP 0068:c6b73eac ---[ end trace 782e5196b9791a10 ]---
If wanted I could start a bisect on this.
Regards, Stefan
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