Thanks for the patch, it finally made the driver work for me after
2.6.26! (What do not you release patched version!)

By the way 2.6.26 has a buggy support for my webcam (05ca:183a) using
uvcvideo, everything excepting mplayer is broken with the driver! I
usually had kernel panics (untill I disable the uvcvideo), But the
thing is that 
the quality with the uvcvideo driver (which i just could test it
using "mplayer tv://") was better than this driver!

Here is a quick hack that makes the driver work with kernel 2.6.26,
at least on my machine (Vaio SZ3). As I have no experience with
kernel hacking I guess some things are missing.

http://lists.mediati.org/archives/r5u870-list/2008-September/000053.html

Still getting the same problem with the latest fedora kernels 
(2.6.26.3-29 and 2.6.26.5-32).  Whatever has changed to break this 
driver between the 2.6.25 kernels and the 2.6.26 kernels doesn't 
look like its going to be fixed within the kernel, so I guess its 
down to the r5u870 driver to make the required changes.  I'm not a 
kernel hacker, but would be happy to test any changes to see if they 
have fixed things.

James.

the same here, custom kernel 2.6.26.2 with svn rev 106
with 2.6.25.x it worked great. (i'm on a 64bit system)

this is what dmesg says after trying using the webcam with tvtime:
 
[  351.361389] Linux video capture interface: v2.00
[  351.380229] usbcam: registering driver r5u870 0.11.2
[  351.381071] r5u870: Found DMI model: "Pavilion dv6000
(RR699EA#ABZ)     "
[  351.381077] r5u870-0: Detected HP Pavilion Webcam (WDM)
[  351.382318] firmware: requesting r5u870_1870.fw
[  351.452900] r5u870-0: registered as video0
[  351.452900] usbcore: registered new interface driver r5u870
[  355.010751] ------------[ cut here ]------------
[  355.010760] Kernel BUG at ffffffffa0b43b05 [verbose debug info
unavailable]
[  355.010764] invalid opcode: 0000 [1] SMP 
[  355.010766] CPU 0 
[  355.010766] Modules linked in: r5u870 usbcam compat_ioctl32
videodev v4l1_compat videobuf_dma_sg videobuf_core ipv6 af_packet
binfmt_misc rfkill_input ppdev sbs sbshc cpufreq_conservative
cpufreq_stats cpufreq_userspace iptable_filter ip_tables x_tables
nls_iso8859_1 nls_cp437 dm_crypt dm_mod sbp2 joydev parport_pc lp
parport snd_hda_intel arc4 ecb crypto_blkcipher snd_pcm_oss
snd_mixer_oss snd_pcm b43 snd_seq_dummy rfkill mac80211 snd_seq_oss
snd_seq_midi snd_rawmidi cfg80211 psmouse snd_seq_midi_event
serio_raw input_polldev pcspkr nvidia(P) ricoh_mmc sdhci snd_seq
snd_timer snd_seq_device k8temp mmc_core snd ssb soundcore
snd_page_alloc i2c_nforce2 i2c_core video shpchp pci_hotplug output
wmi evdev sg sd_mod usbhid hid ide_cd_mod cdrom sata_nv pata_amd
pata_acpi ata_generic libata scsi_mod amd74xx dock ohci1394 ieee1394
ide_pci_generic ide_core ehci_hcd ohci_hcd usbcore fan fuse fbcon
tileblit font bitblit softcursor
[  355.010766] Pid: 8953, comm: tvtime Tainted: P         
2.6.26.2-kahuna64 #3
[  355.010766] RIP: 0010:[<ffffffffa0b43b05>]  [<ffffffffa0b43b05>]
:videobuf_core:videobuf_queue_core_init+0xd5/0xf0
[  355.010766] RSP: 0018:ffff810068119cd8  EFLAGS: 00010246
[  355.010766] RAX: ffffffffa0b4d0e0 RBX: 0000000000000001 RCX:
0000000000000000
[  355.010766] RDX: 0000000000000000 RSI: 0000000000000000 RDI:
ffff8100916b8ba8
[  355.010766] RBP: ffff8100916b8a10 R08: 0000000000000000 R09:
ffff8100916b8a10
[  355.010766] R10: 0000000000000000 R11: ffffffff80350480 R12:
0000000000000004
[  355.010766] R13: 0000000000000000 R14: ffffffffa0b6eae0 R15:
0000000000000000
[  355.010766] FS:  00007f19a615a6f0(0000) GS:ffffffff805cd000(0000)
knlGS:00000000f796a8d0
[  355.010766] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[  355.010766] CR2: 00007f19a3959e50 CR3: 000000006f764000 CR4:
00000000000006e0
[  355.010766] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[  355.010766] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[  355.010766] Process tvtime (pid: 8953, threadinfo
ffff810068118000, task ffff8100680b0c20)
[  355.010766] Stack:  00000101802857b1 ffff810093984800
00000000fffffff4 ffff8100916b8a00
[  355.010766]  ffff810093363a68 ffff810093984e58 ffff810093ab3e40
ffffffffa0b4a053
[  355.010766]  00000000000000d8 ffff8100916b8a00 ffffffffa0b4d0e0
ffffffffa0b66108
[  355.010766] Call Trace:
[  355.010766]  [<ffffffffa0b4a053>] ?
:videobuf_dma_sg:videobuf_queue_sg_init+0x23/0x30
[  355.010766]  [<ffffffffa0b66108>] ? :usbcam:usbcam_v4l_open+0x88/0x220
[  355.010766]  [<ffffffff802aaa90>] ? chrdev_open+0x0/0x1c0
[  355.010766]  [<ffffffffa0b5865d>] ? :videodev:video_open+0xbd/0x180
[  355.010766]  [<ffffffff802aab4d>] ? chrdev_open+0xbd/0x1c0
[  355.010766]  [<ffffffff802a595e>] ? __dentry_open+0xde/0x2a0
[  355.010766]  [<ffffffff802b3d7f>] ? do_filp_open+0x1ff/0x900
[  355.010766]  [<ffffffff80242077>] ? do_sigaction+0xf7/0x180
[  355.010766]  [<ffffffff802a5699>] ? get_unused_fd_flags+0x79/0x120
[  355.010766]  [<ffffffff802a579a>] ? do_sys_open+0x5a/0xf0
[  355.010766]  [<ffffffff8020c2cb>] ? system_call_after_swapgs+0x7b/0x80
[  355.010766] 
[  355.010766] 
[  355.010766] Code: 8d 85 70 01 00 00 48 89 85 70 01 00 00 48 89 85
78 01 00 00 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f c3 0f 0b eb fe
0f 0b eb fe <0f> 0b eb fe 0f 1f 80 00 00 00 00 0f 0b eb fe 0f 0b eb
fe 0f 0b 
[  355.010766] RIP  [<ffffffffa0b43b05>]
:videobuf_core:videobuf_queue_core_init+0xd5/0xf0
[  355.010766]  RSP <ffff810068119cd8>
[  355.011078] ---[ end trace 00ddaa64ba8608d2 ]---

Same problem with fedora kernel 2.6.26.2-14 from koji.

Cheers,
James.

I'm hitting the same oops testing the latest fedora kernel 
(2.6.26.1-9 from koji.fedoraproject.org) using the r5u870 driver 
from the 0.11.1 tarball.  Let me know if there is anything I can do 
to help debug this.

Thanks,
James.

Hi today I upgraded to kernel 2.6.26 with my custom config, I get
compile time warnings and when inserting the module with modprobe i
got an oops. Please see attached file. This is with r94 from svn.

Rgds
Saxa