Hello, On an OMAP L138 custom board, the USB is used to conect to a SMS95xx (hub usb + ethernet) that have a Freescale Chip (usb uart conversor) and a eXar chip (usb multiple uart conversor) connected. The eXar and Freescale are self powered connected from the start of boot and the usb port is limited to Full Speed. Both device drivers that talk with the chips return the error -28 when using the function usb_submit_urb. With the help of davinci mailing list I know that -28 means -ENOSPC, according to Documentation/usb/error-codes.txt: -ENOSPC This request would overcommit the usb bandwidth reserved for periodic transfers (interrupt, isochronous). If I disconnect and plug again the chip everything work fine. Anyone have an idea what can cause this problem ? Thanks. Regards, Aníbal -- 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
