I like old PCMCIA cards, and would like to get a serial card to work on a Thinkpad X40 running Debian 12.5.
The card is just called "Serial I/O PC Card" and should be physically and electrically compatible, 3.3V/5V, 16 bit. I think it is this: https://shop.ocr.ca/media/pdf/Socket-Mobile/srliopc.pdf It didn't immediately work when I inserted it, and instead of spending hours following the red herring down the rabbit hole I thought I should try asking here first for a change. This is what I get from dmesg: [ 331.059401] pcmcia_socket pcmcia_socket0: pccard: PCMCIA card inserted into slot 0 [ 331.059429] pcmcia_socket pcmcia_socket0: cs: memory probe 0xd8200000-0xdf9fffff: [ 331.060446] excluding 0xd8980000-0xd90fffff 0xdaf00000-0xdb67ffff 0xdbe00000-0xdc57ffff 0xdcd00000-0xdd47ffff 0xddc00000-0xde37ffff 0xdeb00000-0xdf27ffff [ 331.068677] pcmcia (null): pcmcia: registering new device pcmcia(null) (IRQ: 3) [ 331.141504] orinoco 0.15 (David Gibson <her...@gibson.dropbear.id.au>, Pavel Roskin <pro...@gnu.org>, et al) [ 331.197037] spectrum_cs 0.0: Failed to initialize firmware (err = -16) [ 331.197062] spectrum_cs: orinoco_init() failed When I searched for "spectrum_cs" and "orinico" I got a lot of results for some PC Card WLAN interface, which isn't right. Does anyone recognize this? It should have a bog-standard 16550 compatible UART and PCMCIA is more or less an ISA bus so I did not foresee any problem. Is it perhaps incorrectly detecting my card as a WLAN card? // Anders