Hi all, I have an EVM board with an OMAP 3430 connected to a ISP1504A OTG chips which has a mini-AB plug-in. I tried to put the 1504A into host mode and would like to see the powering (and detection) of a connected USB device. We check the ID line which seems to be grounded. The kernel is Linux version 2.6.22.1-omap1 ES2. I enabled the CONFIG_USB_MUSB_OTG option and I saw the usb0 created. However the transceiver was not in host mode. How could I put it into host mode? According to the specs of the ISP1504A, I have enable the ID_PULLUP regiser bit to logic 1. I am wondering where should I check to see that the registers are set properly with the MUSB drivers. Your help is appreciated and thanks in advance, Starting kernel ... ... usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb musb_hdrc: version 2.2a/db-0.5.2/dbg, musb-dma, otg (peripheral+host), debug=1 musb_platform_resume 175: 3430-resume()<7>HS USB OTG: revision 0x33, sysconfig 0x2015, sysstatus 0x1, intrfsel 0x1, simenable 0x0 -----------> is_host_enabled -----------> is_peripheral_enabled musb_hdrc: USB OTG mode controller at c8800000 using DMA, IRQ 92 musb_init_controller 2148: OTG mode, status 0, dev80 ... usbmon: debugfs is not available usbcore: registered new interface driver cdc_acm drivers/usb/class/cdc-acm.c: v0.25:USB Abstract Control Model driver for USB modems and ISDN adapters Initializing USB Mass Storage driver... usbcore: registered new interface driver usb-storage USB Mass Storage support registered. usbcore: registered new interface driver usbtest ether gadget: using random self ethernet address ether gadget: using random host ethernet address usb0: Ethernet Gadget, version: May Day 2005 usb0: using musb_hdrc, OUT ep1out IN ep1in STATUS ep2in usb0: MAC 86:e0:22:2e:a5:dd usb0: HOST MAC 1a:0a:8d:0b:76:d3 usb0: RNDIS ready usb_gadget_register_driver 1822: OTG startup... musb_hdrc musb_hdrc.0: MUSB HDRC host driver musb_hdrc musb_hdrc.0: new USB bus registered, assigned bus number 1 usb usb1: Product: MUSB HDRC host driver usb usb1: Manufacturer: Linux 2.6.22.1-omap1 musb-hcd usb usb1: SerialNumber: musb_hdrc.0 usb usb1: configuration #1 chosen from 1 choice hub 1-0:1.0: USB hub found hub 1-0:1.0: 1 port detected musb_context_store_and_suspend 253: MUSB-Context-SAVE (Off mode support) musb_platform_suspend 149: ... Robert Le Van Mao (450) 542-5984 fax : (450) 358-7707 RLeVanMao@xxxxxxxxxxxxxx www.rheinmetall.ca -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html