On Sun, Aug 21, 2005 at 08:43:50PM +0200, Hesse, Christian wrote: > Hello everybody, > > seems like I have a problem with PCMCIA/PCCARD. If I transfer data > to or from a CF card inserted via adapter system waits for > interrupts most of the time: Cpu(s): 21.2% us, 7.9% sy, 0.0% ni, > 0.0% id, 1.7% wa, 69.2% hi, 0.0% si This results in a very > unresponsive system and a transfer rate of up to 1MB/s (my new > camera writes with up to 10MB/s on the card...).
The drivers are working correctly; the problem is with the CF flash adapter you're using. There are two kinds of CF-to-PCMCIA adapters. Some are 16-bit PCMCIA cards, which are in most cases limited to a bus throughput of ~1 MB/sec, regardless of what the CF card is capable of. There are also 32-bit CF adapter cards, that are much faster, limited only by the speed of the CF device. Here are two: http://www.delkin.com/delkin_products_adapters_cardbus.html http://www.lexarmedia.com/readers/cf32bit.html -- Dave - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
