こんにちは 以前 [vine-users:055519] でUSB カメラについて質問した奥井です。 今度は２個接続して両方のカメラの画像を表示させたいと考えています。 USB カメラ２個は認識されているようですが１個のカメラの画像しかだせません。 ドライバov511のWebPageに以下のような記述がありました。 Q: I have two OV511 cameras connected to the same host controller, but when I try to use both at once, I get I/O, etc... errors. A: By default, the driver is only configured for one camera and will use all of the USB bus bandwidth for it. A second camera will either stall the first one or stall itself if you try to stream from both at once. To fix this, you can reduce the bandwidth each cam takes by setting the "cams" module parameter to the number of cameras you intend to use simultaneously. For example, "insmod ov511.o cams=2". You may have to increase this parameter if you have other USB devices on the same bus. The max for this parameter is 4 for OV511 and 32 for OV511+, though I have not personally tested more than 3 cameras at once. NOTE: There are timing problems in some cameras that may result in minor image corruption, or possibly no image, when cams > 2. それで以下のコマンドを入れましたがかわりません。 $/sbin/insmod /lib/modules/2.4.18-0vl3/kernel/drivers/usb/ov511.o cams=2 insmod: a module named ov511 already exists どのようにすればcam=2のオプションを有効にできるのでしょうか? 色々(modprobe,insmod,modules.conf)調べたのですがわかりません。 ご教授お願い致します。 dmesg|lessのUSB部分の抜粋 usb.c: registered new driver hiddev usb.c: registered new driver hid hid-core.c: v1.8 Andreas Gal, Vojtech Pavlik <vojtech@xxxxxxx> hid-core.c: USB HID support drivers uhci.c: USB Universal Host Controller Interface driver v1.1 PCI: Found IRQ 9 for device 00:1f.2 PCI: Setting latency timer of device 00:1f.2 to 64 uhci.c: USB UHCI at I/O 0x1820, IRQ 9 usb.c: new USB bus registered, assigned bus number 1 hub.c: USB hub found hub.c: 2 ports detected hub.c: USB new device connect on bus1/1, assigned device number 2 usb.c: USB device 2 (vend/prod 0x5a9/0x511) is not claimed by any active driver.hub.c: USB new device connect on bus1/2, assigned device number 3 usb.c: USB device 3 (vend/prod 0x5a9/0x511) is not claimed by any active driver.Linux video capture interface: v1.00 usb.c: registered new driver ov511 ov511.c: USB OV511 video device found ov511.c: model: Generic Camera (no ID) ov511.c: Sensor is an OV7610 ov511.c: Device 2 on bus 1 registered to minor 0 ov511.c: USB OV511 video device found ov511.c: model: Generic Camera (no ID) ov511.c: Sensor is an OV7610 ov511.c: Device 3 on bus 1 registered to minor 1 ov511.c: v1.63 : ov511 USB Camera Driver