Hi all, I'm trying to use my iMX25PDK as a USB device but I'm facing some problems. The 2 most relevant are: Problem #1.- Continuous reset of the USB controller To check if the hardware is fine, I've run the BSP FSL-2.6.31_09.12.01 from Freescale and I can load any gadget driver with positive results. The problem appears on new kernels when fsl_udc_core is compiled with VERBOSE and DEBUG defined. I've tried 3.2.2, 3.3.2 and 3.4-rc3 kernels, all of them with the same results; if I load -any- gadget driver and plug the USB cord into my Linux Host, I get the following error messages, continuously, non stopping: ------------------------------------------------------------------------ --- [fsl_udc_irq] reset int [reset_irq] Controller reset [dr_controller_setup] vir[qh_base] is ffdf9000 phy[qh_base] is 0x838c4000 reg is 0x838c4000 [fsl_udc_irq] reset int [reset_irq] Controller reset [dr_controller_setup] vir[qh_base] is ffdf9000 phy[qh_base] is 0x838c4000 reg is 0x838c4000 .......... .......... ------------------------------------------------------------------------ --- If fsl_udc_core is compiled with VERBOSE -OR- DEBUG undefined, I can load any gadget driver with no "reset" problem. Problem #2.- g_webcam enumeration The enumeration starts as soon as the USB cord is plugged into my Linux Host, but with no user space support (the device /dev/video0 hasn't been opened). With the USB cord unplugged I've traced the call chain when g_webcam is modprobed down to "fsl_pullup". This function is only called once and, as expected, "is_on" parameter is 0 so the pullup should disabled, but when I plug the USB cord ..... enumeration starts :( Any advice is really appreciated !!! TIA for your help, Gonzalo. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
