From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: <4AA9D73E-127B-427E-A2B6-0FD8348CADC6@bitblocks.com> References: <4AA9D73E-127B-427E-A2B6-0FD8348CADC6@bitblocks.com> From: Ramakrishnan Muthukrishnan Date: Fri, 28 Feb 2014 20:42:53 +0530 Message-ID: To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: Re: [9fans] Raspberry Pi: won't recognize the USB mouse Topicbox-Message-UUID: bf7026aa-ead8-11e9-9d60-3106f5b1d025 On Fri, Feb 28, 2014 at 8:05 PM, Bakul Shah wrote: > >> When mouse+keyboard is connected, it shows this: >> >> ... >> #u/usb/ep1.0: dwcotg: port 0x0 irq 9 >> #l0: usb: 100Mbps port 0x0 irq -1: 000000000..00 >> 496M memory: 101M kernel data, 395M user, 1877M swap >> usb/hub... usb/ether... >> etherusb smsc: ... >> usb/kb... >> >> and it hangs. >> >> When I connect only the keyboard, it goes past this screen, but I >> can't read it, it was too fast for me to read. > > This seems like a power problem. If you're using the USB port of a comput= er to power the RasPi, it is not going to provide enough current. Use a sup= ply that can provide an amp or more such as an apple iPhone charger (or a p= owered USB hub). Check out the FAQ and newbie forums at the raspberrypi sit= e. This is also why you should try bringing up raspbian first. Thank you Bakul. I am downloading Raspbian distro now. I guess USB hosts need not provide more than 100mA is it is not enumerated (and 500mA once enumerated). I will try my cell phone charger with RPi + Rasbian. --=20 Ramakrishnan